糖耐量试验下述哪项是正确的( )A．食葡萄糖后从静脉血测定为宜 B．试验时原则上用

________ thousands of people outside; it was too noisy.[ ]

A. There seemed to be

B. There seemed to have

C. It seemed to be

D. It seemed to have

---Could you please tell me ________ the USA?

---In two weeks, I think.

A．how soon will you visit

B．how soon you will visit

C．how long have you been in

D．how long you have been in

患儿男，2岁，反复咳嗽和喘息发作6个月，夜间为甚。体格检查：双肺可闻及哮鸣音和粗湿啰音，余无异常发现。外周血WBC7×10／L，N0．51，L0．49。

为了明确诊断，应选用（）。

A.胸部X线检查

B.PPD试验

C.纤维支气管镜活组织检查

D.肺功能测定

E.下呼吸道分泌物普通培养

F.皮肤点刺试验

下列哪些描述属于箱式变电所的特点（）。

A.投资较小，占地面积小

B.电缆使用量较少，可节约投资1/4~1/3C.设计施工周期较长

D.综合自动化程度高，配置灵活

E.有足够的检修空间，有利于维护

如何认识与实践恢复手段？