用所给词的适当形式填空。 1.Don't be __________ (ange

题型:填空题

问题:

用所给词的适当形式填空。

1.Don't be __________ (anger) any more.

2. Everyone __________ (get) angry ___________ (sometime). Don't worry.

3. Be quiet, everybody! I have something ___________ (important) to tell you.

4. It's important ___________ (eat) a balanced diet.

5. Now let me ___________ (tell) you the ___________ (important) about it.

6. I study late every night, sometimes until 2 am,

    but I __________ (not think) I'm ___________ (improve).

7. I am sorry ___________ (hear) that you're ill.

   But I ____________ (hear) you fought with someone yesterday afternoon.

8. Don't worry about it. We still have ___________ (few) vegetables at home.

9. Hurry up (快点)! There's ___________ (a little) time left.

考点:形容词不可数名词不定代词频度副词实义动词的单数第三人称形式
题型:填空题

下列有关说法正确的是(设NA为阿伏伽德罗常数的值)(  )

A.向氯水中加入NaOH溶液至中性,所得溶液中c(Na+)=c(Cl-)+c(ClO-

B.Na2O2在空气中长期放置,最终变为NaHCO3粉末

C.某溶液中加入铝粉能产生氢气,该溶液中可能大量存在:H+、SO42-、NO3-、Na+

D.在反应O3+2KI+H2O═2KOH+I2+O2中,每生成32gO2,转移电子数目为NA

题型:填空题

如 图为某同学根据测定一节干电池的电动势和内电阻的实验数据绘制成的U-I图,由此可得干电池的电动势E=______V,内阻r=______Ω.(结果保留2位有效数字)

题型:填空题

RIP的最大HOP数为()。

A.3

B.7

C.15

D.31

题型:填空题

通过《马关条约》,清政府被迫允许外国在中国投资办厂,而今天我们国家招商引资,同样允许外国在中国投资办厂,这两者之间有什么本质的不同?

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题型:填空题

汽油机的启动转速高于柴油机的启动转速。

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