【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
【判断题】C语言的每条可执行语句最终都将被转换成二进制的机器指令。
【单选题】Only after her mother came to help her for the first few months ______ to begin her project.
【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.