一项工程甲队单独做需要10天完成,乙队单独做需要12天完成,甲的工作效率比乙多百

题型:解答题

问题:

一项工程甲队单独做需要10天完成,乙队单独做需要12天完成,甲的工作效率比乙多百分之几?

考点:百分数的计算,百分数的应用题
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Mr Brown is one of my friend . He can run very fast and likes to show people how fast he can run .

One day , a thief(小偷) got into his house , took some of his things and ran out of the house fast . Mr. Brown found it and ran after him , and shouted (喊),“Hey ! Don’t you know you can’t get away from me ?”

But the thief ran much faster . Mr. Brown got angry and ran faster , too . He was soon a few kilometers away from his house . He was running hard when he met me. “ Why are you running so fast ?” I asked , “ I want to catch a thief .” said Mr. Brown “But where is the thief ?” I asked . “ Kilometers and kilometers behind .” Said Mr. Brown proudly . “ He thought he could run faster than me , but you see he is wrong .”

小题1:Did the thief steal(偷) anything from Mr. Brown’s house ?

A.Yes, he was.

B.No, he wasn’t .

C.Yes, he did .

D.No, he didn’t .小题2:Who ran faster , Mr. Brown or the thief ?

A.Yes, Mr. Brown .

B.No, the thief .

C.Mr. Brown

D.The thief.小题3:Did Mr. Brown catch the thief?

A.Yes, he did

B.No, he didn’t .

C.Yes, but he let him go away .

D.No, but his friend did .小题4:What did Mr. Brown do when he found the thief ?

A.He ran after him .

B.He was angry with him .

C.He caught him .

D.He stayed far behind him.小题5:What does the word “ proudly”mean ?

A.自豪地

B.难过地

C.兴奋地

D.不慌不忙

题型:解答题

目前,我国零数委托适用于( )。

A.卖出股票
B.买入股票
C.卖出记账式国债
D.买入记账式国债

题型:解答题

下图为30°S纬线圈,其中PQ之间、MN之间、ST之间为陆地.其余均为海洋,据此完成各题。

小题1:下列各点附近洋流形成了世界性大渔场的是

A.P

B.M

C.S

D.T小题2:N所在国家和T所在国家共同的地理特征有

①都是世界著名的农矿产品出口国;②人口和城市都主要分布在东南部;③都是人口超过1亿的国家;④两国的首都均位于沿海

A.①②

B.②③

C.③④

D.①④

题型:解答题

场效应晶体管具有很小的输入电流和很高的输入()。

题型:解答题

下列说法中,不属于自动变速器不能行使故障原因的是()。

A、油泵损坏

B、操纵手柄和手动阀之间的连杆或拉索松脱

C、主油路严重泄漏

D、变速器油温过高

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