装订车间原来一台机器一小时可以装订200本笔记本，改进技术后一台机器一小时比原来多装订30本．装订车间的50台机器一天(按工作8小时计算)比原来多装订_1本笔记本。_刷题宝

题干

装订车间原来一台机器一小时可以装订200本笔记本，改进技术后一台机器一小时比原来多装订30本．装订车间的50台机器一天(按工作8小时计算)比原来多装订____本笔记本。

上一题下一题 0.0难度选择题更新时间:2013-05-29 03:27:10

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12000

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请阅读第题中的个人情况说明，然后从A—F六个选项中选出符合要求的最佳选项，并在题号前填写相应的字母，选项中其中有一项为多余。

____Oh，we don’t have strawberries at home．Let’s go and buy some．

____Sally’s blue T-shirt is too small，she needs a big one．

____Alan can’t find his red pen．Can you help him?

____Mrs．Green wants to eat carrots for lunch，but there are no carrots at home．

____David needs lots of money for his school things．

A

Help Wanted

We need help for our store．You can get twenty dollars a day．

B

Fresh Store

All the fruit is on sale．Come and see for yourself．

C

Hand Store

Today eggs，carrots，tomatoes are on sale．Please come to our store．

D

sports Store

Do you like sports? Today soccer balls，basketballs，volleyballs and other sports things are on sale．

E

zig zag store

In our store，we have lots of school things．You can call US at 887—9870

F

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Come and have a look at Apple’s great Sale．Hmm，you can find clothes that you like here．

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There are many in it. ( )

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如图所示装置先放暗处一昼夜，然后用铝箔纸将甲叶片全部包裹，乙叶片不包裹．在连续照光数天后，摘下甲、乙叶片通过去除叶绿素和漂洗后，再滴加碘液．下列叙述正确的是（　　）

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如图，灯泡L₁比L₂亮，电压表V₂示数为6V，下列说法正确的是（　　）

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