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【单选题】
病毒性肠炎正确的治疗原则是A.
饮食和支持疗法为主
B.
使用庆大霉素
C.
使用新青霉素
D.
使用制霉菌素
E.
使用氨苄西林
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皮皮学刷刷变学霸
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【简答题】研究样品表面形貌特征的的主要研究方法:————;————;————
【单选题】— How time flies! — Yeah. It seems like yesterday that I graduated from college. I can’t believe I for 10 years!
A.
had worked
B.
am working
C.
worked
D.
have been working
【单选题】We met Mary and her husband at a party two months ago. ______ we've had no further communication.
A.
Thereof
B.
Thereby
C.
Thereafter
D.
Thereabouts
【单选题】We met Mary and her husband at a party two months ago. ______we've had no further communication.
A.
Thereafter
B.
Thereabouts
C.
Thereof
D.
Thereby
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