At the computer operation test, one is supposed to stay at his own machine, keep his eyes on his screen, ______ to anyone.

A．and not to speak

B．but could not speak

C．instead of speaking

D．or rather speak

监管机构聘用外部审计师的主要目的是（）

A.核查被监管机构报表的准确性

B.评价被监管机构编制报表的系统是否完备

C.评价被监管机构的内部控制系统是否完善

D.核查各项拨备是否充足

E.核查被监管机构遵守审慎监管标准和监管法规的情况