As we know, it's very polite to talk to

题型:选择题

问题:

As we know, it's very polite to talk to each other. What would you say if you met a girl who is very heavy? [ ]

A. You used to be thin, didn't you?

B. You are too heavy.

C. You must lose your weight.

D. You are still heavier than me.

考点:日常用语、谚语
题型:选择题
—______ is it? 
—It's red

A.  what 
B.  How
C.  What color
题型:选择题

提出大陆漂移学说的是德国科学家_______。

题型:选择题

在治疗肺炎球菌肺炎使用青霉素时,错误的方法是()

A.一般患者每次肌注80万单位,每8小时1次

B.每日剂量800万单位,加在500ml输液中缓慢静滴

C.每日剂量800万单位,分3次静脉滴注

D.静脉滴药时每次用量应在1小时内滴完

E.对青霉素过敏者不可使用此药

题型:选择题

男性,40岁。头晕、头痛5个月,水肿、少尿1月余,血压190/135mmHg,全身水肿,尿蛋白(++++),尿红细胞(+++),尿素氮20mmol/L,诊断为()

A.急进型高血压

B.原发性高血压Ⅲ期

C.原发性高血压Ⅱ期

D.高血压脑病

E.高血压危象

题型:选择题

一家用电热毯的调温原理是用电子线路将输入的正弦交变电压的波形截去一部分来实现的.若经电子线路调整后通过电热毯的电压波形如图所示,已知电热毛的电阻为R,则通过电热毯的电流为(  )

A.

Um
4R

B.

Um
2R

C.

2
Um
4R

D.

2Um
2R

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