以下关于卫生间不锈钢五金件保养周期与保养方法,描述正确的是哪项()? A.洁而亮可以

题型:单项选择题

问题:

以下关于卫生间不锈钢五金件保养周期与保养方法,描述正确的是哪项()?

A.洁而亮可以清洁卫生的不锈钢五金件

B.卫生间不锈钢五金件保养周期为30天

C.将洁夫液倒在干抹布上,然后均匀平铺物体表面,再用力清洁

D.卫生间不锈钢五金件安排在单项清洁内,每月使用不锈钢油清洁一次

考点:管理学星级酒店服务营销星级酒店服务营销题库
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两灯串联,一灯较亮,一灯较暗,则下列说法正确的是(  )

A.较亮的灯中电流较大

B.较暗的灯中电流较小

C.两灯电流一样大

D.条件不足无法判断

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急性胃肠炎最典型的临床表现是哪组()。

A.上腹疼痛、呕吐物带血液、上腹疼痛

B.上腹疼痛伴压痛

C.恶心、呕吐伴腹泻

D.上腹痛、发热、失水、酸中毒

E.腹痛、呕吐伴腹泻

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对传染性非典型肺炎病人发病后的密切接触者,应自与病人最后接触之日起,进行医学观察天数为()

A.7

B.10

C.14

D.21

E.28

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麦胚芽如长世界的储存()

A.蛋白质

B.维生素

C.游离脂肪酸

D.矿物质的含量会增加

题型:单项选择题

A total of 4.6 million digital televisions have been sold, and the sales of HDTV sets have quadrupled since last year. Consumers have bought HDTVs to play their DVDs and to have clearer pictures and wide screens. Only a small percentage of the people who have purchased HDTVs, however, have actually hooked their TVs up to receive high-definition television digital signals. Perhaps television viewers are having trouble keeping up with the changes in technology. Even the manufacturers of HDTVs, like Mitsubishi, Thomson Multimedia, Sony, and Samsung seem to have a tough time learning how to make their sets work with the various digital TV formats because little standardization has been required or implemented in the industry.

Some of the HDTVs weigh over 200 lbs., and a variety of retailers offer a delivery service to the buyer’s home to help install the heavy sets. This is known as a white-glove service and usually comes with an extra fee. After HDTV purchasers get their sets home and hook them up, they will still need to work to get the digital signals to their systems. Most of the industry’s cable providers do not yet offer high~definition programing, and only about 15% of commercial television stations have switched over to even the lowest improved digital pictures. Worse yet, viewers may need to install antenna before they can even get the digital signals to their new HDTV sets. Another frustration for home-theater seekers is that the current HDTV sets allow owners only to watch high-definition programs, not to record them.

A majority of HDTV consumers could not enjoy high-quality digital pictures because ().

A. they did not tune in to the right channel

B. they did not install the system

C. the market retailers created the confusion on purpose

D. the manufacturers did not have a uniform standard for their sets

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