问题 单项选择题

紫外线灯照射强度监测至少应()

A.每月一次

B.每季度一次

C.每半年一次

D.每年一次

E.觉得消毒达不到要求时再监测

答案

参考答案:C

解析:紫外线灯照射强度监测应每半年一次。

填空题
阅读理解

阅读理解。

     Long bus rides are like television shows. They have a beginning, a middle, and an end - with commercials

thrown in every three or four minutes. The commercials are unavoidable. They happen whether you want

them or not. Every couple of minutes a billboard glides by (滑过) outside the bus window. Only if you sleep,

which is equal to turning the television set off, are you spared the unending cry of "You Need It! Buy It

Now!"? 

     The beginning of the ride is comfortable and somewhat exciting, even if you've traveled that way before.

Usually some things have changed-new houses, new buildings, sometimes even a new road. The bus driver

has a style of driving and it's fun to try to figure it out the first hour or so. If the driver is particularly careless

or daring, the ride can be as thrilling as a horror story. Will the driver pass the truck in time? Will the driver

move into the right or the left-hand lane? After a while, of course, the excitement dies down. Sleeping for a

while helps pass the middle hours of the ride. Food always makes bus rides more interesting, but you've got

to be careful of what kind of food you eat. Too much salty food can make you very thirsty between stops.

     The end of the ride is somewhat like the beginning. You know it will soon be over and there's a kind of

expectation and excitement in that. The seat, of course, has become harder as the hours have passed. By

now you've sat with your legs crossed, with your hands in your lap, with your hands on the arm rests-even

with your hands crossed behind your head. The end comes just at the right time. There just no more ways

to sit.

1. The long bus rides and TV shows are alike, because _____. [ ]

A. they both can offer people with thrilling stories

B. they both are boring

C. they both have a beginning, a middle, and an end, with commercials in between

D. they both force people to sit for a long time

2. During the whole bus ride, what come to the passengers' eyes most frequently?[ ]

A. Some salty food on the bus.

B. The programs on TV.

C. Advertisements on the road.

D. Trucks on the road.

3. In order to pass the middle hours of the ride, you can _____. [ ]

A. read the billboards

B. have something to eat

C. watch TV shows

D. sleep

4. The purpose of the passage is to _____. [ ]

A. show how much bus rides differ from TV shows

B. teach us how to deal with each period of a long bus ride

C. persuade readers to take a long bus ride

D. give the author's opinion on long bus rides