根据合同的成立是否以交付标的物为要件,可将合同分为( )。
A.诺成合同
B.主合同
C.要式合同
D.实践合同
E.不要式合同
参考答案:A,E
On the rescue scene of the copper mine in Chile, the crowd cheered _________ a miner was safely brought to the surface.
A.from time to time
B.any time
C.at a time
D.every time
T68卧式锁床的运动形式有哪几种?