In Britain,sales of cigarettes have bee

题型:选择题

问题:

In Britain,sales of cigarettes have been reduced __________ 30% in the past ten years.

A.for

B.to

C.from

D.by

考点:介词和介词短语
题型:选择题
判断画线部分字母发音是(√)否(×)一致。
( ) 1. bike  window
( ) 3. milk  fish
( ) 5. he  we
( ) 2. nice  like
( ) 4. egg  red
( ) 6. late  apple                                              
题型:选择题

单词拼写。

1. Can’t you see the "No smoking" s_______?

2. Working with you gave me a lot of p_______. I really enjoy it.

3. The company was e_______ in 1950.

4. I think I can f_______ up the clock.

5. Something is wrong with the TV. It needs r________.

6. There is no chalk in the classroom. Could you please go to my office and

f_______ some for me?

7. Chen Zhong sings songs well. He wants to be a p_______ singer in the

future.

8. People in these countries don’t have enough food to eat,and many of them have

died of h_______.

9. You can i_______ how different the table manners there are from ours.

10. The m_______ part of the job is done by machine.

题型:选择题

某Mg-Al合金放入足量HCl溶液中,生成H2的体积在标准状况下是2 240 mL;同质量该Mg-Al合金放入足量NaOH溶液中,生成H2的体积在标准状况下是2 016 mL,则合金中Mg、Al的质量之比是(   )

A.1:1

B.6:1

C.1:6

D.4:27

题型:选择题

室内立管一般应设在厨房靠近外墙角处,穿楼板时应设套管,套管应高出地面()mm。

A.30

B.50

C.100

D.80

题型:选择题

“掌握学习”教学模式中的教学评价分为()。

A.诊断性评价

B.形成性评价

C.终结性评价

D.事前评价

E.事后评价

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