_______________.

【名词&注释】

化学反应(chemical reaction)、基本理论(basic theory)、混合物(mixture)、稀盐酸(dilute hydrochloric acid)、质量比(mass ratio)、另一种(another)

[单选题]_______________.

A. of
B. outside
C. from
D. inside

查看答案&解析

举一反三：

[单选题]From the passage, we know that The song Auld Lang Syne mainly played in the USA _

A. On New Year’s
B. Eve.
C. On
D. Christmas
E. Eve.
F. On weekends.
G. On holidays.

[单选题]现有4g由Cu和另一种^(another)金属形成的混合物，将其加入足量的稀盐酸充分反应后得到0．2g氢气，则另一种^(another)金属是（ ）。

A. Ag Zn

[单选题]______________

A. Could you please help me?
B. How much is it?
C. That’s too expensive.
D. What color do you want?
E. Here is the money.
F. F. How do you like this T-shirt?
G. G. What size would you like?

[单选题]—Would you please lend me your bike？— _______________ .

A. Sure
B. No,thanks
C. Never mind
D. It was a pleasure

[单选题]Keep practicing and you _____ your English.

A. improve
B. will improve
C. improved
D. were improving

[单选题]分子动理论是从微观角度看待宏观现象的基本理论。以下现象，能用分子动理论进行解释的是【】

A. 风的形成
B. 烟从烟囱中冒出
C. 用毛皮摩擦过的橡胶棒能吸引轻小物体
D. 离花园较远处就能闻到花香

[单选题]现将10gA和足量B混合加热，A与B发生化学反应，10gA完全反应后生成8gC和4gD，则参加反应的A与B的质量比^{(mass ratio)}是（     ）

A. 1：1
B. 2：1
C. 4：1
D. 5：1

[单选题]4．She __________a handsome man

A. got married
B. married with
C. was married to
D. marry

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