起重用钢丝绳应每年试验一次，以（）倍容许工作荷重进行10min的静力试验，不应有断裂和显著的局部处延伸现象。
A.4
B.3
C.2
D.1
参考答案：C
What a great weight Jane felt ________ off her mind the moment she heard she had passed the College Entrance Examination!
A．take
B．to take
C．taking
D．taken
动物在进行全身麻醉时不常出现的并发症是（）
A.呕吐
B.舌回缩
C.呼吸停止
D.心搏停止
E.眼球凹陷
