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【单选题】
功用为泻火解毒的方剂是A.
黄连解毒汤
B.
消毒饮
C.
凉膈散
D.
仙方活命饮
E.
消毒饮
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【简答题】分光光度法测定水样中氰化物时，使用的标准物质是氰化铵。
【简答题】请说出BOCSCH燃气壁挂锅炉中ZW和ZS两款锅炉在结构上有哪些差异?
【单选题】What should you do to keep in touch with your best friend when he / she moved away? (1) Keep in touch with him / her through letters or e-mails. (2) Never phone him / her again. (3) Send a birthday ca...
A.
(2) (3) (4)
B.
(1) (3) (5)
C.
(1) (2) (4)
【单选题】With the cell phone available, I can do whatever I want to do and still______in touch with my par
A.
31．With the cell phone available, I can do whatever I want to do and still______in touch with my parents and friends． A．stay
B.
to stay
C.
staying
D.
Stayed
【单选题】-How do you keep in touch with your old classmates or schoolmates? -By chatting with them on the Internet, _______for three hours every day. [ ]
A.
approximately
B.
averagedly
C.
mostly
D.
absolutely
【单选题】— How do you usually keep in touch with your friends, by email or letter? — _____. I use telephone only. [ ]
A.
None
B.
Neither
C.
Any
D.
Either
【简答题】2018年8月,清华公司固定资产折旧情况。如图:
【单选题】用二苯碳酸二肼分光光度法测定水中六价铬时应注意
A.
水样不加酸保存当天测定
B.
水样中性或弱碱性保存当天测定
C.
水样加酸保存一星期测定
D.
水样中性保存一星期测定
E.
水样加碱可长期保存
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