The key to our success was having the courage to take on any job and then being creative in our ____ to getting it finished.

A．measure

B．method

C．appoint

D．approach

当发动机转速较低时，由于油压传感器膜片承受的压力小，所以触点（）。

A.不闭合

B.闭合时间短

C.常闭合

D.闭合时间长