What are the two objectives in presenting a new structural item?
题目
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更多“What are the two objectives in presenting a new structural item?”相关问题
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第1题：
请完成下列Java程序：实现2个下拉式菜单，一个包含exit菜单项，另一个包含item1和item2共2个菜单项。要求选择exit菜单项时，退出程序；选择item1菜单项之后，item1项变为不可选而item2可选；选择item2菜单项时，item2变为不可选而item1可选。
注意：请勿改动main()主方法和其他已有语句内容，仅在下划线处填入适当的语句。
程序运行结果如下：
import java.awt.*;
import java.awt.event.*;
public class ex18_2 extends Frame. implements ActionListener {
private choiceHandler ch;
private MenuItem item1;
private MenuItem item2;
public static void main(String[] arg) {
new ex18_2 ( );
}
ex18_2 ( ) {
setTitle("ex18_2");
MenuItem item;
ch = new choiceHandler();
MenuBar mb = new MenuBar();
Menu fm = new Menu("File");
fm.addSeparator();
fm.add(item = new MenuItem("Exit"));
item.addActionListener(this);
fm.add(item);
mb.add(fm);
Menu mm = new Menu("Choice");
mm.add(item1 = new MenuItem("item1"));
item1.addActionListener(ch);
mm.add(item2 = new MenuItem("item2"));
item2.addActionListener(ch);
mb.add(mm);
setMenuBar(mb);
setSize(200,200);
show();
}
public void actionPerformed(ActionEvent ae) {
if(ae.getActionCommand().equals("Exit"))
System.exit(0);
else
System.out.println(ae.getActionCommand());
}
class choiceHandler implements ActionListener {
public void actionPerformed(ActionEvent ae) {
String strCommand = ae.getActionCommand();
if(_________________) {
item2.setEnabled(true);
item1.setEnabled(false);
} else if(______________________) {
item2.setEnabled(false);
item1.setEnabled(true);
}
}
}
}
正确答案：strCommand．equals(”item1”) strCommand．equals(”item2”)
strCommand．equals(”item1”) strCommand．equals(”item2”) 解析：本题主要考查AWT建立菜单的基本方法和事件处理机制，以及控制菜单项的可选与否。解题关键是熟悉菜单的创建和设置方法，掌握菜单的事件处理模型，通过事件处理机制实现对菜单项的设置。本题中，第1个空，判断菜单命令是由选择 item1项发出的，则进行相关的设置；第2个空，判断菜单命令是由选择item2项发出的，则进行相关的操作。 -
第2题：
Which of the following statements is NOT a way of presenting new vocabulary?A．Defining.
B．Using real objects.
C．Writing a passage by using new words.
D．Giving explanations.答案：C解析：考查词汇教学。呈现新词汇的方法可以是下定义、实物展示、解释等。四个选项中只有C项不合适。 -
第3题：
An Active Directory database is installed on the C volume of a domain controller. You need to move the Active Directory database to a new volume What should you do（）
- A、Move the ntds，dit file to the new volume by using Windows Explorer.
- B、Copy the ntds，dit file to the new volume by using the ROBOCOPY command.
- C、Move the ntds，dit file to the new volume by using the Files option in the Ntdsutil utility .
- D、Move the ntds，dit file to the new volume by running the Move-item command in Microsoft Windows powerShell.
正确答案:C -
第4题：
Given that Thing is a class， how many objects and reference variables are created by the following code？（） Thing item， stuff； item = new Thing（）； Thing entity = new Thing（）；
- A、One object is created
- B、Two objects are created
- C、Three objects are created
- D、One reference variable is created
- E、Two reference variables are created
- F、Three reference variables are created.
正确答案:B,F -
第5题：
A customer requires two 12X loops on their new POWER7 system. What is the smallest system that will support two loops?（）
- A、Power 710
- B、Power 720
- C、Power 730
- D、Power 740
正确答案:D -
第6题：
单选题What does the marketing director want to get from the meeting?AThe nomination for a new department head
BPermission to begin a print advertising plan
CAn agreement on the content of a TV commercial
DFunding approval for the production of a new item
正确答案： A解析：
根据第3段第2句We hope to elicit the vice president’s consent for our print media campaign on the new Spring Shoe可知答案为B。 -
第7题：
单选题Given： What is the result？ （）AA new Item object is created with the preferred value in the id attribute.
BThe attribute id in the Item object is modified to the new value.
CCompilation fails.
DAn exception is thrown at runtime.
EThe attribute id in the Item object remains unchanged.
正确答案： C解析： 暂无解析 -
第8题：
单选题Which of the following statements is NOT a way of presenting new vocabulary? _____.Adefining
Busing real objects
Cwriting a passage by using new words
Dgiving explanations
正确答案： B解析：
呈现新词汇的方法可以是下定义、实物展示、解释等。 -
第9题：
单选题public class ItemTest { private final mt id； public ItemTest（int id） { this.id = id； } public void updateId（int newId） { id = newId； } public static void main（String[] args） { ItemTest fa = new ItemTest（42）； fa.updateId（69）； System.out.println（fa.id）； } } What is the result？（）ACompilation fails.
BAn exception is thrown at runtime.
CThe attribute id in the Item object remains unchanged.
DThe attribute id in the Item object is modified to the new value.
EA new Item object is created with the preferred value in the id attribute.
正确答案： C解析： 暂无解析 -
第10题：
多选题What are two objectives of a pre-site survey walkthrough？ （）AIdentify potential problem areas
BDefine intended coverage areas
CAccess compliance with local building codes
DDetermine the final location of APs and antennas
EIdentify sources of RF signal attenuation and RF interference
正确答案： B,A解析： 暂无解析 -
第11题：
多选题Which two statements are true about a Work Item with "Open" Notification? （）(Choose two.)AThe Work Item is not eligible for Purge.
BThe Work Item is eligible for a Permanent purge.
CThe Work Item is eligible for a Temporary purge.
DThe Work Item is not complete because it still has Open Notification.
EThe Work Item is eligible for both Temporary and Permanent purge.
正确答案： A,C解析： 暂无解析 -
第12题：
问答题What are the two objectives in presenting a new structural item?正确答案： When presenting a new structural item we should be primarily trying to achieve two things:
a) to enable the students to recognize the new structure well enough to be able to produce it themselves (ie. establish the form);
b) to make absolutely clear the usage of the pattern, so that when the students produce them, prompted by the teacher, they know what they are saying (ie. establish the meaning).解析： 暂无解析 -
第13题：
Which of the following statements is NOT a way of presenting new vocabulary
A. Defining.
B. Using real objects.
C. Writing a passage by using new words.
D. Giving explanations.答案：C解析：考查词汇教学。呈现新词汇的方法可以是下定义、实物展示、解释等。四个选项中只有C项不合适。 -
第14题：
What are two objectives of a pre-site survey walkthrough？ （）
- A、Identify potential problem areas
- B、Define intended coverage areas
- C、Access compliance with local building codes
- D、Determine the final location of APs and antennas
- E、Identify sources of RF signal attenuation and RF interference
正确答案:A,B -
第15题：
What are the six principles to remember when presenting new vocabulary in class?
正确答案: Before presenting vocabulary in class, it is helpful to remember the following:
a) Teach and practice the words in spoken form first.
b) Teach words in context.
c) Teach lexical items rather than individual words.
d) Present words in a memorable way.
e) Check understanding.
f) Revise often. -
第16题：
In order to use the item records at the site level， to what must the item be added？ （）
- A、 Asset
- B、 Location
- C、 Storeroom
- D、 Rotating Asset
正确答案:C -
第17题：
What must be created before populating the Tools application？ （）
- A、 Item Sets
- B、 Item Master Owner
- C、 Vendors for the Items
- D、 Storeroom assignment
正确答案:A -
第18题：
单选题public class Item { private String desc； public String getDescription（） { return desc； } public void setDescription（String d） { desc = d； } public static void modifyDesc（Item item， String desc） { item = new Item（）； item.setDescription（desc）； } public static void main（String[] args） { Item it = new Item（）； it.setDescription（”Gobstopper”）； Item it2 = new Item（）； it2.setDescription（”Fizzylifting”）； modifyDesc（it， “Scrumdiddlyumptious”）； System.out.println（it.getDescription（））； System.out.println（it2.getDescription（））； } } What is the outcome of the code？ （）ACompilation fails.
BGobstopper Fizzylifting
CGobstopper Scrumdiddlyumptious
DScrumdiddlyumptious Fizzylifltng
EScrumdiddlyumptious Scrumdiddlyumptious
正确答案： C解析： 暂无解析 -
第19题：
单选题What does the news item say about President Obama?AHe had to deal with harmful gases.
BHe criticized two West Virginia’s officials.
CHe prayed for the families of the miners.
DHe already knew the cause of the event.
正确答案： A解析：
事实判断题。新闻录音中提到，事故发生后奥巴马总统及其他官员均阐明了各自的想法，并向遇难矿工的家属表示慰问。可知选项C为正确答案。
【听力原文】
Officials there are trying to figure out what caused the worst U. S. mining disaster in 25 years. It happened Monday afternoon at the Upper Big Branch South Mine: a massive blast inside the coal mine that killed at least 25 people, left 4 others trapped. Rescue workers are trying to drill their way into the mine, but they need to get 1,200 feet down inside of it’ and that could take a while. Not only is this process slow, it’s dangerous. Crews are having to deal with potentially harmful gases. President Obama and other officials, including both of West Virginia’s U. S. senators, have offered their thoughts and prayers to the families of the miners. They’ve also said they’re determined to find out what happened and how it can be prevented in the future. One government official said, “Miners should never have to sacrifice their fives for their livelihood.” This all happened inside a facility that does what’s called longwall mining. -
第20题：
问答题What are the six principles to remember when presenting new vocabulary in class?正确答案： Before presenting vocabulary in class, it is helpful to remember the following:
a) Teach and practice the words in spoken form first.
b) Teach words in context.
c) Teach lexical items rather than individual words.
d) Present words in a memorable way.
e) Check understanding.
f) Revise often.解析： 暂无解析 -
第21题：
多选题CiscoWorks IP Telephony Environment Monitor (ITEM) provides what two serviceability capabilities?（）ATool to collect syslog messages from multiple sources
BUser Tracking to track IP telephones
CDiagnostic trace tools to analyze connectivity
DMonitoring of Cisco voice elements
EProblem alerts for operations personnel
正确答案： D,E解析： 暂无解析 -
第22题：
单选题What must be created before populating the Tools application？ （）AItem Sets
BItem Master Owner
CVendors for the Items
DStoreroom assignment
正确答案： D解析： 暂无解析 -
第23题：
单选题In order to use the item records at the site level， to what must the item be added？ （）AAsset
BLocation
CStoreroom
DRotating Asset
正确答案： A解析： 暂无解析