—Life is limited. We had better _______ it on valuable things.

—Good idea. And we should spend more time ______ our family members.

A．spend, with

B．take, on

C．spend, on

D．cost, with

嵌入SQL的高级语言称为( )或宿主语言。

A．主语言

B．综合语言

C．阶段语言

D．预处理语言