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【单选题】
回答题 Spoilt for Choice Some research which was recently carried out in Britain has confirmed what many ordinary shoppers have suspected for quite a long time. Having a _____(51)selection of goods to choose from is not necessarily a _____(52)to consumers. The average supermarket in Britain has around 40,000 different products on sale at any one time and if you're _____(53)of buying a car, then there are actually around 1,600 different _____(54)on the market. In one sense, choice is a good thing because it _____(55)use to buy those products which best suit our needs. But choice can also _____(56)something of a problem. With over 400brands of shampoo on the market, how does the consumer _____(57)hold of the information necessary to choose between them?For some people the solution is to buy only well-known brands, whilst others are happy to be _____(58)by advertising. There is evidence, _____(59), that for some people the _____(60)of choice available to them in Britain's consumer society is actually a _____(61)of anxiety and stress. One man interviewed by the researchers admitted that he had _____(62)out to buy his girlfriend a mobile phone for her birthday, but was so _____(63)by the number of different types on offer in the shop that he _____(64)up and decided to buy her a bundle(束)of flowers _____(65)! _____ 查看材料
A.
deep
B.
wide
C.
long
D.
tall
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【单选题】已知HCl-空气的混合气体中,HCl的质量分数为35%,则HCl的比摩尔分数为( )。
A.
0.391
B.
0.398
C.
0.421
D.
0.456
【单选题】已知char型变量ch是一个大写字母,不能将其由大写字母转换成小写字母的语句是( )。
A.
ch=ch+32;
B.
ch=ch%26+' a ';
C.
ch=ch-' A '+' a ';
D.
ch=tolower(ch);
【判断题】____鸡传染性支气管炎是由细菌引起的一种传染性呼吸道疾病。
A.
正确
B.
错误
【判断题】牌号为40Si2MnV的合金钢其含碳量为40%
A.
正确
B.
错误
【简答题】HCl分子的χe=0.01728,计算HCl的摩尔离解能。
【单选题】个性特征中最为稳定的特征是( )
A.
能力
B.
兴趣
C.
气质
D.
性格
E.
情绪
【判断题】存货截止审计的主要方法是抽查存货盘点日期前后的购货发票与验收报告(或入库单),档案中每张发票均附验收报告(或入库单)。()
A.
正确
B.
错误
【简答题】(1)HCl的相对分子质量为______,HCl的摩尔质量为______,49gH 2 SO 4 的物质的量为______; (2)0.5mol的Fe含______个铁原子,质量是______g,12.04×10 23 个铁原子约是______mol.
【单选题】如果每天脱发()根以上,头顶毛发逐渐稀疏就可以算是脱发。
A.
20
B.
50
C.
80
D.
100
【单选题】存货截止审计的主要方法是:抽查存货( )的购货发票与验收报告(或入库单)
A.
盘点日期前后;
B.
存货资产负债表日;
C.
审计日前后;
D.
存货入库前后
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