问题 单项选择题

下列具体操作错误的是()。

A、在启动第一套反渗透,上位机上按ROA/B启动键,多介质进水阀打开后,控制进水流量在170吨左右,反渗透启动瞬间如果多介质产水压力低余1点5公斤,可适当提升流量,待正常运行后恢复流量,控制运行压力在3-4.5公斤。

B、在一套反渗透投运,在有多介质反洗的前提下,可在上位机上启运另一套,启动前先把多介质运行压力提升至4点5公斤。

C、按启动键后多介质正洗10分钟,控制多介质运行压力不低于1点5公斤。

D、反渗透低压冲洗结束闭进水阀瞬间(多介质压力明显上升),降低总进水流量,控制压力,待高压泵启动,反渗透进水阀打开后(多介质压力明显下降),恢复正常流量,控制多介质运行压力在3-4.5公斤压力。

答案

参考答案:B

选择题
阅读理解

For many people today, reading is no longer relaxation. To keep up with their work they must read letters, reports, trade publications, interoffice communications: a never-ending flood of words. In getting a job or advancing in one, the ability to read and comprehend quickly can mean the difference between success and failure. Yet the unfortunate fact is that most of us are poor readers.

Most reading faults can be traced to early school training. According to Dr. Betts, two persons out of five in school were forced to read material too difficult for them to understand at the time, a frustration experience which left them with bad reading habits.

Fortunately, almost anyone can learn to read faster and with more comprehension. Age makes little difference. According to a recent study of 138 students at The Reading Laboratory, Inc. , all age groups showed a marked increase in reading rate after training from 93 percent for the 50-90 age group to 142 percent for the 20-29.Dr. Mila Banton Smith, director of New York University’s Reading Institute, says that the average adult student, in 28 training hours, nearly triples (三倍的) his reading speed and boosts(增长) his comprehension by about 30 percent.

The best way to improve your reading, of course, is to enroll(登记) in a reading clinic. If there’s no clinic handy, you can improve your reading ability yourself--- provided you have no eyes troubles. (if reading tires you easily or makes your eyes or head ache, you should consult a doctor.)

小题1:To many people today, _______.

A.reading quickly is easy

B.reading quickly and comprehending quickly can ensure their success

C.reading is only for fun

D.reading can ensure their success小题2:Most reading faults are_______

A.due to early school training

B.a frustrating experience

C.made by reading difficult materials

D.made by reading carelessly小题3:Who can learn to read fast and with comprehension?

A.teachers only

B.students only

C.a few people

D.almost everybody小题4:According to the passage, what is the best way to improve one’s reading?

A.go to a doctor

B.review what has been learnt at school

C.go to reading remedial class for special training

D.consult a dictionary