问题 单项选择题

对于运行中的制冷系统,冷凝面积是一定的,所以决定()的主要因素,就是冷却介质的流量和温度。

A.冷凝压力

B.饱和气体

C.过热气体

D.低压气体

答案

参考答案:A

判断题
阅读理解

阅读理解。

                                                    Ani-mazing Animation Contest

     Ani-mazing is proud to announce its second animation (动画片) contest to introduce new animation

talents to the world.Contest entries (参赛作品) will be shown at the West Coast Animation Exhibition

from September 20.The exhibition will last for a week.Winners will be determined by a group of

Animation Industry experts who will review every entry.The result will be announced on September 28,

2011, when the awards ceremony will be held at the world - famous Egyptian Theatre, in Hollywood.We

are also planning to have a number of programs leading up to September 28, so hopefully this second year

will be a" Week of Animated Shorts".

     Cash prizes ranging from $500 to $5,000 will be awarded, as well as giveaways such as animation

software packages, resort trips and computer equipment.

     Please review these guidelines before sending your entry in:

     1.There are no restrictions on animation technique, no age limits or education requirements.All animated

films must be more than one minute long.

     2.All entries must be original and have received no major award before submitting to Ani-mazing.Both

computer and hand animation is accepted.

     3.Keep in mind that your animation will be viewed by an all-ages audience. Ani-mazing reserves the right

to reject entries containing inappropriate subject matter.

     4.More than one entries is allowed, however, all entries must be the work of nonprofessionals.Time

limits may prevent us from exhibiting all of the entries received, so please choose one animation to be your

primary entry. 

     5.All entries must be handed in by July 30.If you have trouble making this deadline, contact us and we

will consider extending the deadline for you.

     6.Please send a copy of your animation, not the original.We will not be able to return media to you.

     7.Your entry MUST include your name, age, educational background, contact information, and length

of the animation.

1. Why will the animation contest be held?

A. To collect works for an animation exhibition.

B. To attract more people to a course.

C. To find new animation talents.

D. To increase people' s awareness about animation.

2. Which of the following meets the requirements of the contest?

A. An animation made by hand.

B. An animation lasting 50 seconds.

C. An animation winning an award last year.

D. An animation downloaded from the Internet.

3. What is the deadline for entry?

A. September 27.

B. September 20.

C. July 30.

D. September 28.