下列有权机关进行查冻扣时,明文要求办案人员人数不少于两人的是()。
A、法院
B、公安机关
C、人民检察院
D、人民银行
参考答案:B, C, D
There ________ be any difficulty about passing the road test since you have practised a lot in the driving school.
A.mustn't
B.shan't
C.shouldn't
D.needn't
简述股二头肌的主要功能。