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【单选题】
患者,喘而胸满闷塞,咳嗽,痰多粘腻色白,咯吐不利,舌苔白腻,脉滑。其证A.
肺气郁闭
B.
痰浊阻肺
C.
痰热郁肺
D.
里热
E.
风寒袭肺
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【简答题】现一块铜合金，可能是黄铜（铜、锌合金）、青铜（铜、锡合金）、白铜[铜、镍（Ni）合金]中的一种，现欲测定其组成． [查阅资料]Ⅰ．锌、锡、镍皆能与稀硫酸发生置换反应，生成+2价的金属离子； Ⅱ．相对原子质量Zn-65，Sn-119，Ni-59． [实验步骤及数据]取5g合金粉碎后放入烧杯中，将20g15%稀H 2 SO 4 分四次加入烧杯中充分反应后，测定剩余固体质量数据记录如下： 次数 1 2 ...
【简答题】用司盘-80、吐温-80配成混合乳化剂5克,使其HLB值为13.2,计算司盘-80、吐温 - 80用量
【简答题】用司盘-80、吐温-80配成混合乳化剂5克,使其HLB值为13.2,计算各个乳化剂的用量
【单选题】听力原文：M: Finally I got the chance to put on my new suit tonight. I've got to leave a good impression with your family. W: Come on, it's merely a family reunion. So jeans and T-shirts are just fine. Q: ...
A.
She would like to see the man in formal dress.
B.
She believes the man's suit is appropriate for this occasion.
C.
The man could dress casually.
D.
Suit and tie are recommended for tonight's reunion.
【单选题】听力原文： M: Finally I’ve got the chance to put on my new suit tonight. I hope to make a good impression on your family. W: Come on, it’s only a family reunion. So jeans and T- shirts are just fine. Q: Wh...
A.
The man has left a good impression on her family.
B.
The man’s jeans and T-shirts are stylish.
C.
The man should buy himself a new suit.
D.
The man can dress casually for the occasion.
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