Why is it a problem if all the smaller fish species die?
A. It's not healthy for the environment.
B. People only like to catch big fish.
C. There are too many small fish.
D. The smaller fish can get lost in the lake.
第1题:
GivenafileGrizzlyBear.java:1.package animals.mammals;2.3.public class GrizzlyBear extends Bear{4.voidhunt(){5.Salmons=findSalmon();6.s.consume();7.}8.}and another file,Salmon.java:1.packageanimals.fish;2.3.public class Salmon extends Fish{4.voidconsume(){/*dostuff*/}5.}Assume both classes are defined in the correct directories for theft packages,and that the Mammal class correctly defines the findSalmon()method.Which two changes allow this code to compile correctly?()
A.add public to the start of line 4 in Salmon.java
B.add public to the start of line 4 in GrizzlyBear.java
C.add import animals.mammals.*;at line 2 in Salmon.java
D.add import animals.fish.*at line 2 in GrizzlyBear.java
E.add import animals.fish.Salmon.*;at line 2 in GrizzlyBear.java
F.add import animals.mammals.GrizzlyBear.*;at line 2 in Salmon.java
第2题:
Jim is fond of sports now, so he is much __________(healthy) than before.
第3题:
4、Problem 2-4
第4题:
A.lsmap-all-net
B.lsclient-disk-net
C.lsdev-virtual-client
D.lsmap-all;lsmap-net
第5题:
“失去生命”这一意义,汉语用“sǐ”表示,英语用“die”表示,那是因为不同民族对这一意义有不同理解的缘故。
A对
B错
第6题:
斜楔的楔角愈小,增力比愈();摩擦角愈大,增力比愈() The smaller the wedge angle is, the force ratio is ();The larger the friction angle is, the force ratio is ().
A.大 小 larger,smaller
B.大 大 larger,larger
C.小 小 smaller, smaller
D.小 大 smaller,larger