单项选择题

（2019年真题）货币执行价值尺度职能的特点是（ ）。

A.可以是观念形态的货币
B.是直接以重量计算的贵金属
C.必须是现实的货币
D.必须是足值的货币
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Most children carry their phone in their back pocket,and when someone reaches for it,in mymind they're reaching for a gun, said Della Fave,a spokesman(发言人)for New Jersey police.Della Fare shared a photo of the iPhone case(外壳)that he found on a social website(网页).In thephoto,a model stands with her phone in her back pocket,and the case looks like a gun.Della Fave said, If a child draws the phone with the gun-like case before policemen,the firstthing they're going to see as it's coming up is a gun.This doesn't seem like a good idea at all to apoliceman. The phone case is sold online by various sellers at prices from about$5 to$49 and comes inseveral different colors. The case is popular.That's why we sell it.If you have the case,you can playgames of shooting at parties, said the Trend Shop. Don't worry.You can't actually shoot anyone! A policeman gave a few words of advice, I would NOT suggest buying this kind of phone case,which was designed to look like a gun. It is not clear who makes the case. If it's on the web,then it's out there somewhere;that's thebottom line, said Della Fave.What do policemen say about the gun-like phone ease?
A.Itiscoolforpeopletocarrysucheases
B.Itshouldbewidelysoldonline
C.Itisnotagoodideabuyingthiskindofcase
D.Itshouldnotbemadeindifferentcolors
单项选择题
A zoo is a place where animals are kept and displayed(展示)to the public.Some people arguethat a zoo need not be a place for animal display alone,and may also include raising animal species(物种)which are becoming less and less.Animal rights groups are divided on the matter of keeping animals in zoos--with some in favor ofthis practice,and others calling for a ban(禁令).The most important reason that those in favor of thispractice put forward is that it offers protection for animals.For those species which are fighting for theirlife,zoos are the best places where they get plenty of food,water and medical care when needed.Those who are against the practice argue that the idea of displaying animals to the public is itselfa strong enough reason for banning.They further add that the practice of using animals for our ownselfish gains cannot be a good reason under the excuse of protection.The treatment of animals inthesezoos is yet another big worry,with quite a few reports about ill-treatment(虐待)of animals once in awhile.It's very difficult to come up with a clear idea on whether it is right to keep animals in zoos or not.It is true that the animals are protected in these places as they don't get into conflict with humans.But,at the same time,one has to admit that keeping them in zoos equals a disrespect for nature.Theseanimals are born to live in the wild,and we should accept this fact.Some animal rights groups are in favor of the zoo because it can______.
A.attractvisitors
B.makemoney
C.trainanimals
D.protectanimals
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