无人机配平的主要考虑是()沿纵轴的前后位置 A.气动焦点 B.发动机 C.重心

题型:单项选择题

问题:

无人机配平的主要考虑是()沿纵轴的前后位置

A.气动焦点

B.发动机

C.重心

考点:无人机驾驶员理论无人机概述与系统组成无人机概述与系统组成题库
题型:单项选择题

“物是感觉的恒久可能性”

题型:单项选择题

“Time is a problem for children,” states a news report for a new Swiss watch. Children in some countries “learn time slowly” because “they don’t wear watches” and “parents don’t really know how to teach them time.” The children grow up with this handicap and become adults-and then can’t get to work on time. Is there an answer to this problem? Of course-it’s the Flick Flak, made by a famous Swiss watch company.

The Flick Flak is being marketed as something teaching watch for children aged 4 to 10. The watch itself does not teach children how to tell time, of course; it merely “takes their imagination” by presenting the “hour” hand as a beautiful red girl named Flak and the “minute” hand as a tall blue boy named Flick. Flick points to related “blue” minutes on the dial, while Flak points to “red” hour numbers. The characters and colors combined with parental help, are supposed to teach young children how to tell time.

The watch comes equipped with a standard battery and a nylon band (尼龙表带). Peter Lipkin, the United States sales manager for the Flick Flak, calls it “childproof: if it gets dirty you can throw the whole watch in the washing machine.” The product is being sold in select department stores in Europe, Asia and the United States for a suggested price of $25. Parents who buy the watch may discover that it is one thing to tell time; it’s quite another for them to be on time.

小题1:From the news report we know that ______.

A.parents are patient when teaching children time

B.parents have little idea of how to teach children time

C.children are likely to learn time quickly

D.children enjoy wearing the Flick Flak watch小题2:The author doesn’t seem to believe ______.

A.children will be on time if they have not learnt how to tell time

B.a Flick Flak can help parents teach their children how to tell time

C.the Flick Flak can take children’s imagination

D.children usually have trouble telling time if they don’t wear watches小题3:The underlined word handicap (Para. 1) means ______.

A.displeasure

B.discouragement

C.disappointment

D.disadvantage小题4:The United State sales manager calls the new watch “childproof” because ______.

A.it is designed to teach children to be on time

B.it proves to be effective in teaching children time

C.it is made so as not to be easily damaged by children

D.it is the children’s favorite watch

题型:单项选择题

丸剂中疗效发挥最快的剂型是()

A.水丸

B.蜜丸

C.糊丸

D.蜡丸

E.滴丸

题型:单项选择题

对乙烯样品进行全分析时()采样。

A.可用球胆

B.一定要用钢瓶

C.用玻璃瓶

D.用塑料瓶

题型:单项选择题

下列各项中,符合关税有关对特殊进口货物完税价格规定的有( )。

A.运往境外加工的货物,应以加工后进境时的到岸价格为完税价格

B.准予暂时进口的施工机械,按同类货物的到岸价格为完税价格

C.转让进口的免税旧货物,以原入境的到岸价为完税价格

D.留购的进口货样,以留购价格作为完税价格

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