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【单选题】
小张是回国旅游的华侨,欲购买一些中药材出境,导游员的对做法A.
告知我国海关关于中药材出境的相关规定
B.
进行阻止
C.
帮助其辨别药材真伪
D.
可帮其代购
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皮皮学刷刷变学霸
举一反三
【单选题】( )yesterday, I would have asked him not to do that.
A.
Provided he came
B.
if he came
C.
If he had come
D.
Has he came
【单选题】9个月男婴，近期因肺炎用多种抗生素治疗，3天来腹泻，每天7～8次，大便含泡沫多，有豆腐渣样细块。查体：眼窝、前囟略凹，口腔黏膜有白色凝乳状物，心肺腹未见异常。本病最主要的诱因是（）
A.
侵袭性大肠埃希菌感染
B.
轮状病毒感染
C.
产毒性大肠埃希菌感染
D.
应用抗生素致肠道菌群失调，继发真菌感染
E.
小婴儿肠道正常菌群未建立
【单选题】菌群失调性腹泻常见的病因是
A.
细菌、真菌、病毒、寄生虫感染
B.
直肠或结肠溃疡、肿瘤或炎症
C.
肠道正常细菌的数量或比例失去平衡
D.
外界的各种刺激,如受寒、过食辛辣食物等
E.
消化不良,吸收不良或暴饮暴食而起
【简答题】酶催化反应的机理是 。
【简答题】I have been asked on occasion whether I would like to live my life over again. On the whole it has been a pretty good life, perhaps better than most peoples, but I should see no point in repeating it....
【简答题】I would have brought you the CD you asked for ____________ (如果我没有忘记的话).
【单选题】Had it not been for the fact that I _____ absent, I would have asked you to do this right now.A．
A.
30. Had it not been for the fact that I _____ absent, I would have asked you to do this right now. A．had been
B.
were
C.
should be
D.
Was
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