We’d better _________ when he is thinking, as he prefers to solve problems on his own.

A．wake him up

B．set him aside

C．leave him alone

D．ring him up

装箱单是对货物各包装件号内商品的详细说明，（）需按照进口商要求填制出口货物的包装形式、规格、数量、毛重、净重、体积等有关事项。

A.开证行

B.出口商

C.通知行

D.海关