中式酯可溶于()中。A.苯类油 B.稀硫酸 C.水 D.氨水

题型:单项选择题

问题:

中式酯可溶于()中。

A.苯类油

B.稀硫酸

C.水

D.氨水

考点:洗涤工洗涤工中级洗涤工中级题库
题型:单项选择题
将正确的选项填入空白处。
A. jobs  B. about  C. to come   D. works   E. better   F. lives   G. cousins   H. to get   I. from
     Sandra is twenty years old. She comes from Wuhan, a city in China. She 1______ with her aunt and uncle
and three cousins in Manhattan (曼哈顿), a part of New York. Her parents and two brothers still live in Wuhan. Her brothers want 2______ to the United States, but her parents are going to stay in Wuhan.
     Sandra works in a small shop on Broadway(百老汇大街). One of her 3______ owns (拥有) the shop.
She 4______ six days a week 5______ ten in the morning to eight at night. The job isn't hard, but the hours
are long and the pay (薪水) is low. Sandra wants to get a 6______ job, but she doesn't know any English. If
one doesn't know English, it's too difficult 7______a good job.
     Life in New York city isn't easy for Sandra. The weather is cold, the Americans seem cold, and sometimes
her room is cold. When she comes home from work, she thinks 8______ her parents, brothers, and friends in
Wuhan. Sometimes she cries a lot. She dreams of going back, but she can't. In Wuhan the weather is warm
and the people are 9______, but there are no 10______ there for Sandra.
题型:单项选择题

一个正方体玻璃缸,棱长4dm,用它装满水,再把水全部倒入一个底面积为20dm2的长方形水槽中,槽里的水面高多少分米?(用方程的方法解答)

题型:单项选择题

口腔癌的致病因素常见的是()

A.咀嚼槟榔

B.吸烟

C.饮酒

D.营养

E.以上均是

题型:单项选择题

肠道病毒能引起下列哪些疾病?()

A.脊髓灰质炎

B.流行性乙型脑炎

C.疱疹性咽峡炎

D.急性出血性结膜炎

E.无菌性脑膜炎

题型:单项选择题

TOSI锅炉一次风压低于()kPa时,磨煤机跳闸保护动作。

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