【判断题】长度比 μ<1 说明投影后线段变长了 。()
【单选题】Social action to help the poor should have the characteristics include______.
A.
the poor should see themselves as the source of the action
B.
the action should effect in major ways preconceptions of institutions
C.
the action should demand much in effect or skill
【单选题】Only after her mother came to help her for the first few months ______ to begin her project.
【判断题】试探性问题是指唤起被访者的回忆,提高回答准确性。
【单选题】如图所示的欧洲轮廓图中,9代表的是哪个港口?
【单选题】The boss suggested to Jessica strongly that she should have a good time, but didn’t help.
【单选题】I could help him with that, but I would sooner he ______ it by himself.