检查妇女的身体，只能由女侦查人员进行。 ( )
参考答案：错
解析：检查妇女的身体应当由女侦查人员或者医师进行。
— Is Jack on duty today?
— It ____ be him; it's his turn tomorrow. [ ]
A. mustn't
B. won't
C. can't
D. needn't
磁放大器由哪些元件组成？
