采用PMC模式运作的工程建设项目通常具有（　　）等特点。 A．规模大 B．管理责任

五位中国学生要去美国留学，他们想要找住家。请仔细阅读第56-60题中的学生的个人情况说明，并从A至F六个选项中，帮助他们选择最适合的住家（其中一项为多余选项）

   小题1:Zhang Chao likes Chinese food. He hopes his host family speak a little Chinese.

   小题2:Li Wei likes doing sports. He wants to live near a park.

   小题3:Liu Yong hopes to live near his school---Reading School. He prefers a bed room with a bathroom

   小题4:Chen Yao wants to live in a big bedroom cheaper than ￡350 a month. She can’t stand pets.

   小题5:Hu Mei loves pets. She would like a bedroom cheaper than ￡220 a month.

为了除去蛋白质溶液中混入的少量氯化钠，可以采用的方法是（     ）

A．过滤

B．渗析

C．电泳

D．加入AgNO₃溶液，过滤

一重症肌无力病人因肺部感染应用卡那霉素治疗，3天后发生危象，这时首先应

A．鉴别危象类型，给予针对性治疗
B．停用卡那霉素
C．保证呼吸道通畅和正常换气
D．积极治疗肺部感染
E．肌肉注射阿托品lmg

为什么要实行免费婚前保健？

叠涩