青春期龈炎好发部位为()A．牙龈任何部位 B．双尖牙牙间 * * C．腭侧龈缘 D．前牙

— Can I look at the menu for a few more minutes before I decide?

— Of course. ____, sir.

A．Enjoy yourself

B．Make yourself at home

C．Take your time

D．It doesn’t matter

The army went ________the thick forest and at last came to a little river.

A．across

B．over

C．above

D．through

中药易变色、价值贵、质嫩或易走油如人参、鹿茸、枸杞、牛漆等常用的干燥方法是

A．体温计
B．血压计
C．听诊器
D．人工晶体
E．光学内窥镜

营销运行体系绩效评估的指标都要有（）的数值表现？

A、真实

B、正确

C、精确

D、精细

对于活塞压缩机排气量是指进口状态为( )时的排气量。

A．压力为0.1MPa，温度为0℃
B．压力为0.1Mpa，温度为20℃
C．压力为101.3kPa，温度为0℃
D．压力为101.3kPa，温度为20℃