下列反应中,不属于取代反应的是[ ] A. 苯的硝化反应 B. 由甲烷制氯仿 C

题型:选择题

问题:

下列反应中,不属于取代反应的是[ ]

A. 苯的硝化反应

B. 由甲烷制氯仿

C. 乙酸乙酯的水解

D. 银镜反应

考点:取代反应
题型:选择题

穿心莲具有的功效是()

A.凉血

B.养阴

C.止血

D.燥湿

E.利水

题型:选择题
In a land far away, once upon a time there was great poverty (贫困),and only the rich could manage without great  36  . Three of those rich men and their servants were  37  together on a road when they came to a very  38  village.
The first could not stand seeing the poverty,  39  he took all the gold and jewels from his wagons (四轮载重马车) and shared  40  out among the villagers. He wished them all the best of luck, and he left.
The second rich man ,seeing the  41  situation, stopped for a short time and gave  42  all his food and drink, since he  43   see that money would be of little  44   to them. He made sure that they each  45  their fair share and would have enough food to  46  for some time . Then, he left.
The third rich man, on seeing such poverty,  47  and went straight through the  48  without stopping. The two other rich men saw this from a distance and commented with each other  49  the third rich man lacked sympathy. It was  50  that they themselves had been there to offer help.
However, three days later, they  51  the  third rich man ,who was coming in the opposite direction . He was  52  travelling quickly, but his wagons,  53  the gold and valuables they had been  54  ,were now full of farming tools and bags of  55  .He was rushing back to help them out of poverty.
小题1:
A.loss B.expectationsC.successD.problems
小题2:
A.standingB.travellingC.gatheringD.running
小题3:
A.farawayB.poorC.differentD.ancient
小题4:
A.unlessB.becauseC.soD.if
小题5:
A.them B.anythingC.nothing D.those
小题6:
A.curiousB.worrying C.dangerous D.puzzling
小题7:
A.the villagersB.his servantsC.the others D.the rest
小题8:
A.could B.mightC.should D.must
小题9:
A.interestB.concern C.use D.attraction
小题10:
A.returned B.gained C.offeredD.received
小题11:
A.remainB.last C.supplyD.share
小题12:
A.turned backB.set out C.showed off D.speeded
小题13:
A.villageB.landC.fieldD.road
小题14:
A.whether B.howC.whereD.when
小题15:
A.goodB.certainC.trueD.strange
小题16:
A.welcomedB.met C.accepted D.persuaded
小题17:
A.stillB.alreadyC.alwaysD.indeed
小题18:
A.exceptB.instead ofC.apart fromD.along with
小题19:
A.loading B.treasuringC.carrying D.earning
小题20:
A.foodB.jewels C.moneyD.seeds
题型:选择题

烟草专卖品准运证的有效期限,公路运输最长不得超过20天,其他运输方式最长不得超过30天。

题型:选择题

衡量电源力作功本领的物理量称为()。

题型:选择题

日前,经国务院批准,2012年上海市、浙江省、广东省、深圳市开展地方政府自行发债试点。关于政府债券,下列说法正确的是()

①发行政府债券是政府财政支出的重要方面

②政府发行债券所得收入属于债务收入

③发行政府债券会形成社会总需求的一部分

④发行政府债券是政府筹集资金的重要方式

A.①②③

B.①②④

C.②③④

D.①③④

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