Some people are against killing wolves because ．
A．wolves help to keep the ecological balance in the wildemess
B．there is too small a wolf population in the wilderness
C．there are too many deer in the wilderness
D．wolves are afraid of people and never attack people

According to those against killing wolves，when wolves e...

单项选择题According to those against killing wolves，when wolves eat other animals， ．
A．they never eat strong and healthy ones
B．they always go against the law of nature
C．they might help this kind of animals survive in nature
D．they disturb the ecological balance in the wilderness

对有机含量较多的土、硫酸盐含量（）的土及重黏土，不宜用水泥来稳定。A．低于0.25%B．超过0.25%C．低于...

单项选择题对有机含量较多的土、硫酸盐含量（）的土及重黏土，不宜用水泥来稳定。

The last sentence“And everyone knows what happens next”...

单项选择题The last sentence“And everyone knows what happens next”implies that in such cases ．
A．farm animals will be in danger and have to be shipped away
B．woIves will kill people and people will in turn kill them
C．wolves wilI find enough food sources on famls
D．people will leave the areas where wolves can live