_____ is a method of procurement where a contract results from a bid which may be changed through bargaining.A AcquisitionB Contract negotiationC ProcurementD Purchase negotiationE None of the above.

题目

_____ is a method of procurement where a contract results from a bid which may be changed through bargaining.

A Acquisition

B Contract negotiation

C Procurement

D Purchase negotiation

E None of the above.

相似考题

1.It was just in the room_____he was born_____he die.A、where, which.B、that, that.C、where, that.D、which, that.

2.有SQL语句：SELECT DISTINCT 系号 FROM 教师 WHERE 工资>=；ALL(SELECT 工资 FROM 教师 WHERE 系号=“02”)与如上语句等价的SQL语句是A) SELECT DISTINCT 系号 FROM 教师 WHERE 工资＞＝；(SELECT MAX（工资）FROM教师WHERE系号="02")B）SELECT DISTINCT 系号 FROM 教师 WHERE 工资＞=；(SELECT MIN(工资）FROM 教师 WHERE 系号＝"02"）C）SELECT DISTINCT 系号 FROM 教师 WHERE 工资＞＝；ANY(SELECT 工资 FROM 教师 WHERE 系号="02")D）SELECT DISTINCT 系号 FROM 教师 WHERE 工资＞＝；SOME(SELECT 工资 FROM 教师 WHERE 系号="02"）

3.You will want two trees about ten feet apart, from _____ to suspend your tent.(A) there (C) which(B) them (D) where

4.有SQL语句： SELECT DISTINCT系号FROM教师WHERE工资＞=； ALL(SELECT工资FROM教师WHERE系号="02") 与如上语句等价的SQL语句是A．SELECT DISTINCT系号FROM教师WHERE工资＞=； (SELECT MAX(工资)FROM教师WHERE系号="02")B．SELECT DISTINCT系号FROM教师WHERE工资＞=； (SELECT MIN(工资)FROM教师WHERE系号="02")C．SELECT DISTINCT系号FROM教师WHERE工资＞=； ANY(SELECT工资FROM教师WHERE系号="02")D．SELECT DISTINCT系号FROM教师WHERE工资＞=； SOME(SELECT工资FROM教师WHERE系号="02")

更多“_____ is a method of procurement where a contract results from a bid which may be changed ”相关问题

  • 第1题：

    有SQL语句： SELECTDISTINCT系号FROM教师WHERE工资>=； ALL(SELECT工资FROM教师WHERE系号="02") 与如上语句等价的SQL语句是

    A．SELECTDISTINCT系号FROM教师WHERE工资>=； (SELECTMAX(工资)FROM教师WHERE系号="02")

    B．SELECTDISTINCT系号FROM教师WHERE工资>=； (SELECTMIN(工资)FROM教师WHERE系号="02")

    C．ELECTDISTINCT系号FROM教师WHERE工资>=； ANY(SELECT工资FROM教师WHERE系号="02")

    D．SELECTDISTINCT系号FROM教师WHERE工资>=； SOME(SELECT工资FROM教师WHERE系号="02")


    正确答案：A
    解析：本题SQL语句的含义是检索有教师工资大于或等于系号为“02”的所有教师工资的系号。ALL、ANY和SOME都是SQL语句中的量词，在进行比较运算时只要子查询中有一行能使结果为真，则结果为真，而ALL则要求子查询中的所有行都使结果为真时，结果才为真，因此在子查询中要使用MAX()函数求出“02”系的教师最高工资，其他系中只要有教师工资高于此函数值，结果便为真。

  • 第2题：

    有SQL语句： SELECT DISTINCT 系号 FROM 教师 WHERE 工资＞=； ALL(SELECT 工资 FROM 教师 WHERE 系号 =“02”) 与如上语句等价的SQL语句是

    A．SELECT DISTINCT 系号 PROM 教师 WHERE 工资＞=； (SELECT MAX(工资)FROM 教师 WHERE 系号=“02”)

    B．SELECT DISTINCT 系号 FROM 教师 WHERE 工资=； (SELECT MIN(工资)FROM 教师 WHERE 系号=“02”)

    C．SELECT DISTINCT 系号 FROM 教师 WHERE 工资＞=； ANY(SELECT 工资 FROM 教师 WHERE 系号=“02”)

    D．SELECT DISTINCT 系号 FROM 教师 WHERE 工资＞=； SOME(SELECT 工资 FROM 教师 WHERE 系号=“02”)


    正确答案：A
    解析：题干中的SQL语句的功能是：查询那些工资比02系工资都高的教师所在的系号，四个选项中只有选项A中的查询条件与此等价，用(SELECT MAX(工资)FROM…WHERE…)实现选择出最高工资，故选项A为正确答案。选项B的查询条件表示工资大于02系中工资最低的教师的工资，选项C和D中的州Y和SOME是同义词，表示查询出只要比02系中某一个教师工资高的记录即可。

  • 第3题：

    2、以下哪个结构是本单元提倡的摘要结构和呈现顺序？

    A．Question/Gap in the literature- Method- Results/Solutions-Conclusions/Summary/Assessment of Solutions- General Introduction- More detailed Background

    B．General Introduction- More detailed Background- Question/Gap in the literature- Method- Results/Solutions- Conclusions/Summary/Assessment of Solutions

    C．Method- Results/Solutions- General Introduction- More detailed Background- Question/Gap in the literature- Conclusions/Summary/


    General Introduction- More detailed Background- Question/Gap in the literature- Method- Results/Solutions- Conclusions/Summary/Assessment of Solutions

  • 第4题：

    You will want two trees about ten feet apart, 选择

    You will want two trees about ten feet apart, from _____ to suspend your tent.

    (A) there                         (C) which

    (B) them                              (D) where

     


    选择D
    可改写为you will want two tress about ten feet apart, to suspend your tent from.
    只要有介词摆在空格之前，选项是which, them ,there ,where肯定是which
    介词+which+动词不定式，整体做定语

  • 第5题：

    有SQL语句：SELECT DISTINCT系号FROM教师WHERE 工资>=ALL （SELECT 工资FROM教师WHERE系号=\"02\"） 与如上语句等价的SQL语句是

    A．SELECT DISTINCT系号FROM教师WHERE工资>=（SELECT MAX（工资）FROM教师WHERE 系号="02"）

    B．SELECT DISTINCT系号FROM教师WHERE工资>=（SELECT MIN（工资）FROM教师WHERE 系号="02"）

    C．SELECT DISTINCT系号FROM教师WHERE工资>=（ANY（SELECT（工资）FROM教师WHERE 系号="02"）

    D．SELECT DISTINCT系号FROM教师WHERE工资>=（SOME （SELECT（工资）FROM教师WHERE 系号="02"）


    正确答案：A

  • 第6题：

    以下哪个结构是本单元提倡的摘要结构和呈现顺序？

    A．Question/Gap in the literature- Method- Results/Solutions-Conclusions/Summary/Assessment of Solutions- General Introduction- More detailed Background

    B．General Introduction- More detailed Background- Question/Gap in the literature- Method- Results/Solutions- Conclusions/Summary/Assessment of Solutions

    C．Method- Results/Solutions- General Introduction- More detailed Background- Question/Gap in the literature- Conclusions/Summary/


    C

相关内容