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【单选题】
甲、工人的平均日产量分别为18件和15件。若甲、工人的平均日产量不变,但是甲组工人数工人总数的比重下降,则两组工人的总平均日产量( )A.
上升
B.
下降
C.
不变
D.
可能上升也可能下降
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【单选题】Hairdresser：How would you like to do your hair today?You’re not in a hurry， are you?Mrs．Lee：N0．__________．
A.
Be relaxed
B.
Take it easy
C.
Don，t worry
D.
Take your time
【单选题】---When _______for Guangzhou? ---Next Monday evening.
A.
are you leaving
B.
were you leaving
C.
you are leaving
D.
you were leaving
【单选题】If you fit the ________ averages, by the age of 20 you will have been exposed to at least 20000 hours of television.
A.
statistical
B.
statistics
C.
statistic
D.
statistically
【单选题】At a party or social occasions, how would you indicate that it was time for you to leave someone's house?
A.
I would say, 'It's getting late and I'd better be going.'
B.
I would say, 'I'm sorry. I have to leave now.'
C.
I would wait until the host said something.
D.
I would make up an excuse (e.g. I have to get up early tomorrow, etc.) and thank the hosts.
【单选题】患者男,67岁。胸闷、憋气1周,尿少3天,端坐位,双下肢重度水肿,血压170/95mmHg,血钾6.5mmol/L,血尿素氮每日上升5.6mmol/L,血肌酐每日上升220umol/L,血红蛋白96g/L,血pH值7.30,诊断为肾功能衰竭。引起该患者高血压的最主要原因是
A.
肾素活性增高
B.
水钠潴留
C.
使用环孢素等药物
D.
精神应激
E.
钠盐摄入过多
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