It will be a big help if you go to the store and get what we need for dinner._____, I’ll set the table.

A．As a result

B．On the whole

C．In the meanwhile

D．As a matter of fact

往复压缩机轴承或十字头滑履发热，可能的原因为（）。

A.配合间隙小

B.轴和轴承接触不均匀

C.润滑油油压太低或断油

D.润滑油太脏