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？
