下列跨膜运输的生理活动中,属于主动运输的是()。 A.甘油分子进入胃黏膜细胞 B.C

题型:单项选择题

问题:

下列跨膜运输的生理活动中,属于主动运输的是()。

A.甘油分子进入胃黏膜细胞

B.CO2穿出组织细胞

C.植物的根从土壤溶液中吸收离子

D.水分子出入细胞

考点:高级中学生物第一章分子与细胞第一章分子与细胞题库
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患者虞某某,男,70岁,长期口服氯林可霉素,诱发假膜性肠炎,诊断为难辨梭菌感染。

难辨梭菌感染病人的粪便特征是()

A.黄色成形便

B.黄色稀便

C.豆花汤样便

D.水样,有斑片状假膜

E.成形且带有血丝样便

题型:单项选择题

One of the most authoritative voices speaking to us today is, of course, the voice of the advertisers. Its shrilling clamor dominates our lives. It shouts at us from the television screens and the radio loudspeakers; waves to us from every page of the newspaper; plucks at our sleeves on the escalator; signals to us from the road-side billboards all day and flashes messages to us in colored lights at night. It has forced on us a whole new conception of the successful man as a man no less than 20% of whose mail consists of announcements of giant carpet sales.
Advertising has been among England’s biggest growing industries since the war, in terms of the ratio of money earnings to demonstrate achievement. Why all this fantastic expenditure
Perhaps the answer is that advertising saves the manufacturers from having to think about the customer. At the stage of designing and developing a product, there is quite enough to think about without worrying over whether anybody will want to buy it. The designer is busy enough without adding customer-appeal to all his other problems of man-hours and machine tolerances and stress factors. So they just go ahead and make the thing and leave it to the advertiser to find eleven ways of making it appeal to purchasers after they finished it, by pretending that it gives status, or attracts love, or signifies manliness. If the advertising agency can do this authoritatively enough, the manufacturer is in clover (养尊处优).
Other manufacturers find advertising saves them from changing their product. And manufacturers hate changes. The ideal product is one or another, some alteration seems called for--how much better to change the image, the packet or the pitch (促销宣传) made by the product, rather than go to all the inconvenience of changing the product itself.

According to the passage modern advertising is "authoritative" because of the way it

A.influences our image of the kind of person we ought to be like.

B.interferes with the privacy of home life.

C.continually forces us into buying things.

D.distracts us no matter where we travel.

题型:单项选择题

Он читает и иногда записывает ( что-н, что-то) на бумаге.

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认证机构派出审核组对申请方质量管理体系进行检查和评定包括()。

A.内部审核

B.文件审查

C.现场审核

D.提出审核意见

E.提出审核报告

题型:单项选择题

综合安全技术

我国铁路对车辆转向架侧架、摇枕实行寿命管理,凡使用年限超过( )年的配件全部报废。

A.10

B.15

C.20

D.25

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