调查人员在反洗钱调查中采取下列那项措施不必经过有关负责人的批准（）
A.询问
B.查阅
C.复制
D.封存
参考答案：A
Judging from his IQ and his present state of study，he be admitted to Ts-inghua University this year if nothing special happens．
A．should
B．shall
C．can
D．must
分段关闭主阀是安装在开腔操作油管上的
