单词拼写 1. There is nothing in the world mo

题型:填空题

问题:

单词拼写

1. There is nothing in the world more ___________ (令人满意的) than doing the work you love.

2. ____________ (希望),the cave will be protected and will not be damaged by visitors.

3. This kind of flower is regarded of ____________(药用的) value.

4. Do you know what colors look good __________(衬托) your skin?

5. A storm __________(席卷) the whole country, causing great damage.

6. You are wrong so you should make _____________ (道歉).

7. In the ________(缺席) of the teacher, Li Ping will be in charge.

8. She went to the bookstore and bought two ________(二十) of this kind of books.

9.When they were about to start the last activity, they found that time was too___________(有限).

10. His first speech as president made a strong___________(印象)on his audience.

考点:单词、词组
题型:填空题

方程x2=|x|的根是______.

题型:填空题

具有高度变异性的肝炎病毒是()

A.HAV

B.HBV

C.HCV

D.HDV

E.HEV

题型:填空题

下列推断正确的是

A.Cl2,SO2均能使品红溶液褪色,说明二者均有氧化性

B.因为氨水是弱碱,所以不能用FeCl3溶液和氨水反应制取Fe(OH)3

C.明矾水解形成的Al(OH)3胶体能吸附水中悬浮物,可用它来净水

D.浓硫酸为强氧化剂,二氧化硫为强还原剂,所以不能用前者干燥后者

题型:填空题

用来衡量货物、服务在一国进出口或世界贸易中所占比重的指标是()

A.国际贸易地理方向

B.国际贸易结构

C.国际贸易地区分布

D.国际贸易比价

题型:填空题

运行中的变压器瓦斯保护,当现场进行哪些工作时,重瓦斯保护应由"跳闸"位置改为"信号"位置运行?

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