固定大桅用的绳索称为()
A.固定索;
B.动索;
C.稳定索;
D.静索。
参考答案:D
试压过程的要求?
I have $20 000 and I need $25 000,but my parents have promised to _______ the difference.
A.work out
B.come up
C.give out
D.make up