人们的需要层次,通常是依次();只有()例外。
A.上升,一种人;
B.下降,一种人;
C.上升,两种;
D.下降,两种。
参考答案:A
My sister ____a good chance to go abroad for further study of English.
A.was provided
B.was presented
C.was supplied
D. was offered
移动机头(尾),将排头(尾)()架范围内同时顶溜。
A.6
B.7
C.8
D.9