人类第一个关于遨游太空的想法是（）

A、埃及法老升天说

B、前苏联探索太空

C、美国阿波罗号登月

D、嫦娥奔月

A backlash below a lock is defined as a（）.

A.current setting your vessel on the wall

B.current setting into the lock chamber

C.an eddy working along the lower guide wall

D.current setting counterclockwise