He was about to tell me the secret _____

题型:选择题

问题:

He was about to tell me the secret ______someone patted me on the shoulder.     [      ]

A. as      

B. until    

C. while  

D. when

考点:并列连词
题型:选择题

一支正在燃烧的蜡烛,它的质量减少,密度______(填减少、增加、不变)

题型:选择题

在项目寿命周期成本分析中,为了进行维持费中各项费用的权衡分析,可采取的措施是( )。

A.进行充分的研制,降低制造费

B.进行维修性设计

C.进行节能设计

D.对操作人员进行充分的培训

题型:选择题

A Web browser is simply a terminal emulator, designed to display text on a screen. The two essential differences between an ordinary terminal emulator and a Web browser are that the browser knows how to deal with (26) , and that it has a mechanism for (27) graphical files. Display text, display graphics, and (28) hyperlinks-there’s 99 percent of the (29) value. That’s not to say that the manufacturers didn’t go all-out to attach a hyperactive efflorescence of useless capabilities onto their browsers. Remember when media channels in the browser were a big deal, instead of the clutter you can’t wait to delete from your favorites of bookmarks menu Remember when client-side Java applets were supposed to become the preferred (30) for application development Remember frames and all their nasty side effects

A.displaying

B.illustrating

C.drawing

D.writing

题型:选择题

深冷装置天然气脱水后,对天然气含水量的要求极高,深冷装置单位体积或单位质量的天然气所含()的质量称为天然气的绝对湿度。

A、甲烷

B、乙烷

C、水蒸气

D、轻烃

题型:选择题

断路器中的油起冷却作用。

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