下列物质中钾的质量分数最大的是( )。A.KCl B.KNO3 C.K2O D.K

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问题:

下列物质中钾的质量分数最大的是( )。

A.KCl

B.KNO3

C.K2O

D.K2CO3

考点:水质检验工初级水质检验工初级
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1. Mrs. Li wants to send her daughter to take some piano lessons during the coming summer holiday.
2. Betty and her boyfriend want to spend the weekend to watch something new. They both like dancing.
3. Darning wants to buy some newspaper to read so that he can improve his English.
4. Mr. Black wants to come to Beijing for the first time in August. He wants to enjoy the real Beijing Opera very much.
5. Tony and his colleagues will have a trip in Guangzhou next week. They need to rent a car and a driver who understands English.
A. Watch Your Neck: This modern ballet is telling the story of “Dracula” which is the classic novel by Irish playwright Bram Stoker. Time: 8:30 pm, February 2-9 Tel:98558588
B. Children’s Activity Center
Tel: 66589982
Add: No. 2 Zhongshan Road (Singing lessons, piano lessons and dancing lessons.)
C. Art Show: A total of 10 artists living close to each other are jointly giving an art exhibition.
D. Peking Opera: Mei Lanfang’s brave fighting against the Japanese during the war of Resistance against Japanese will open your mind.
E. Foreign Book Center: More and more increasing learning English books and newspapers, CDs. ect.
F. The Changcheng hotel: Five star hotel. Looking for much experienced receptionists. Tel: (010)55883326
G. Car-Hire Service: 12 seat Forit transit van for hire in Zhujing Business and Private Hire. We have English-speaking drivers.
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Schools across China are expected to hire 50000 college graduates this year as short-term

teachers , ________ reduce unemployment pressures. [ ]

A. help          

B. to have helped        

C. to help        

D. having helped

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41~45题基于以下共同的题干:  一家仓库有6间库房,按从1到6的顺序排列。有6种货物F、G、L、M、P、T。每一间库房恰好储存6种货物中的一种,不同种类的货物不能存入同一间库房。储存货物时还需满足以下条件:  (1)储存G的库房号比储存L的库房号大。  (2)储存L的库房号比储存T的库房号大。  (3)储存P的库房号比储存F的库房号大。  (4)储存T的库房紧挨着储存P的库房。

以下哪一种货物不能储存在4号库房中

A.L

B.G

C.M

D.P

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BPPV

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白芷入药部位是()。

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