选煤的目的以下正确的是()。A、煤经分选清除矸石后,可减少无效率运输,节省运力,同时

题型:多项选择题

问题:

选煤的目的以下正确的是()。

A、煤经分选清除矸石后,可减少无效率运输,节省运力,同时为综合利用煤矸石创造条件

B、减少燃烧对大气的污染,保护环境

C、消除原煤中的无机矿物质,降低煤的灰分和硫分,提高煤炭质量

D、把煤炭分成不同质量、规格的产品,满足用户的需求,以便有效合理地利用煤炭,使产品各尽其用,提高煤炭的使用价值

考点:选煤工程师重介质选煤重介质选煤题库
题型:多项选择题

下列各项中,符合违反支付结算法律制度法律责任规定的有( )。

A.单位或个人签发空头支票,由中国人民银行对其处以票面金额5%但不低于1000元的罚款

B.单位或个人签发空头支票,持票人有权要求出票人赔偿支票金额5%的赔偿金

C.单位或个人签发空头支票,持票人有权要求出票人赔偿支票金额2%的赔偿金

D.商业承兑汇票的付款人对到期的票据故意压票拖延支付的,由中国人民银行处以压票、拖延支付期间内每日票据金额5‰的罚款

题型:多项选择题

下列说法正确的是

A.将AlCl3溶液蒸干并灼烧后得到的物质是Al(OH)3

B.向饱和AgCl水溶液中加入盐酸,Ksp值变大

C.温度一定时,当溶液中Ag+和Cl-浓度的乘积等于Ksp值时,此溶液为AgCl的饱和溶液

D.所谓沉淀完全就是用沉淀剂将溶液中某一离子除净;

题型:多项选择题

Hunting

The days of the hunter are almost over in India. This is partly because there is practically nothing left to kill, and partly because some steps have been taken, mainly by banning tiger-shooting, to protect those animals which still survive.

Some people say that Man is naturally a hunter. I disagree with this view. Surely out earliest forefathers, who at first possessed no weapons, spent their time digging for roots, and were no doubt themselves often hunted by meat-eating animals.

I believe the main reason why the modern hunter kills is that he thinks people will admire his courage in overpowering dangerous animals. Of course, there are some who truly believe that the killing is not really the important thing, and that the chief pleasure lies in the joy of the hunt and the beauties of the wild countryside. There are also those for whom hunting in fact offers a chance to prove themselves and risk death by design; these men go out after dangerous animals like tigers, even if they say they only do it to rid the countryside of a threat. I can respect reasons like these, but they are clearly different from the need to strengthen your high opinion of yourself.

The greatest big-game hunters expressed in their writings something of these finer motives(动机).One of them wrote.

“You must properly respect what you are after and shoot it cleanly and on the animal’s own territory(领地)。You must fix forever in your mind all the wonders of that particular day. This is better than letting him grow a few years older to be attacked and wounded by his own son and eventually eaten, half alive, by other animals, Hunting is not a cruel and senseless killing – not if you respect the thing you kill, not if you kill to enrich your memories, not if you kill to feed your people.”

I can understand such beliefs, and can compare these hunters with those who hunted lions with spears(矛) and bravely caught them by the tail. But this is very different from many tiger—shoots I have seen, in which modern weapons were used.The so—called hunters fired from tall trees or from the backs of trained elephants. Such methods made tigers seem no more dangerous than rabbits. 

小题1: There is no more hunting in India now partly because___.

A.it is dangerous to hunt there

B.hunting is already out of date

C.hunters want to protect animals

D.there are few animals left to hunt小题2:The author thinks modern hunters kill mainly____.

A.to make the countryside safe

B.to earn people’s admiration

C.to gain power and influence

D.to improve their health小题3: What do we learn about the big-game hunters?

A.They hunt old animals

B.They mistreat animals

C.They hunt for food

D.They hunt for money小题4: What is the author’s view on the tiger-shoots he has seen?

A.Modern hunters lack the courage to hunt face-to-face

B.Modern hunters should use more advanced weapons

C.Modern hunters like to hunt rabbits instead of tigers

D.Modern hunters should put their safety first

题型:多项选择题

下列哪项不是脑肿瘤显像的临床应用()

A.鉴别瘢痕组织与复发病灶

B.脊髓蛛网膜下腔阻塞的诊断

C.脑胶质瘤分级

D.鉴别肿瘤和囊肿、纤维化、出血等

E.肿瘤抗药的监测

题型:多项选择题

津液的输布障碍与()脏腑功能失常有关。

A.肺

B.脾

C.肾

D.三焦

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