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【单选题】
无偿献血,一次献血的量一般为( )。A.
600-800毫升
B.
200~400毫升
C.
800-1200毫升
D.
1000~2000毫升
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皮皮学刷刷变学霸
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【简答题】小题1:They didn’t go swimming．They played basketball instead．(合并句子) They played basketball ___________ ___________going swimming． 小题2:The old man died three years ago．(改为现在完成时) The old man has _________...
【单选题】They didn’t go for a walk______ it was raining.
A.
though
B.
because
C.
until
D.
unless
【单选题】有关肼屈嗪下列哪一说法不正确：
A.
主要舒张小动脉
B.
降低心脏后负荷因而降低心肌耗氧量
C.
可引起肾素水平升高
D.
可反射性引起交感神经张力升高
E.
易引起水盐潴留故常与利尿药合用
【单选题】They didn’t tell me ______ go for their holiday.
A.
where will they
B.
where would they
C.
where they will
D.
where they would
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