单项选择题

I don't know 　 he will come tomorrow. A.
which B.
whether C.
that D.
what

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单项选择题

An early part of the Aeronautical Decision Making (ADM) process involves（） A.
Understanding the drive to have the "right stuff." B.
Taking a self-assessment hazardous attitude inventory test. C.
Obtaining proper flight instruction and experience during training.

单项选择题

中标通知书只对中标人具有法律效力。
A、正确
B、错误