监控人员在监控室内可以通过以下途径监视和控制所有收费车道的实际操作过程。（） A.直

阅读理解。

     Beldon and Canfield are two seashore towns, not far apart. Both towns have many hotels, and in summer

the hotels are full of holiday-makers and other tourists.

     Last August there was a fire at the Seabreeze Hotel in Beldon. The next day, this news appeared on page

two of the town's newspaper. The Beldon Post:

     FIRE AT SEABREEZE

     Late last night firemen hurried to the Seabreeze Hotel and quickly put out a small fire in a bedroom. The

hotel manager said that a cigarette started the fire. We say again to all our visitors: "Please don't smoke

cigarettes in bed." This was Beldon's first hotel fire for five years.

     The Canfield Times gave the news in these words on page one:

     ANOTHER BELDON HOTEL CATCHES FIRE

     Last night Beldon firemen arrived just too late to save clothing, bedclothes and some furniture at the

Seabreeze Hotel. An angry holiday-maker said, "An electric lamp probably started the fire. The bedroom lamps

are very old at some of these hotels. When I put my bedside light on, I heard a funny noise from the lamp." We

are glad to tell our readers that this sort of adventure does not happen in Canfield.

     What are the facts, then? It is never easy to find out the exact truth about an accident. There was a fire at

the Seabreeze Hotel last August: that is one fact. Do we know anything else? Yes, we know that firemen went

to the hotel.

     Now what do you think of the rest of the "news"?

1. Which of the following best gives the main idea of this text?

A. Beldon and Canfield are both good places for tourists in summer.

B. A fire broke out night in Seabreeze Hotel last summer.

C. It was not easy to find out exact truth from newspapers.

D. Two newspapers gave reports on the same matter.

2. Which of the following are probably facts? 

a. The fire broke out in a bedroom at the hotel.

b. A cigarette started the fire.

c. An old lamp started the fire.

d. The fire broke out at night.

e. There has never been a fire in Canfield.

A. b and c

B. a and d

C. c and e

D. a and c

3. The Canfield Times used the headline like this in order to make its readers think ______.

A. hotels in Beldon often catch fire

B. hotels in Beldon don't often catch fire

C. this was the second fire at the Seabreeze Hotel

D. Beldon was a good place except that hotels there are not quite safe

4. The Canfield newspaper gave a report just the opposite to the Beldon Post by saying that ______.

A. the bedroom lamps were very old at the Seabreeze Hotel

B. the bedroom lights made funny noise when the fire took place

C. the firemen failed to save clothing, bedclothes and other things

D. such accidents never happened in Canfield for the past 5 years

如图所示的实验电路，当用黄光照射光电管中的金属涂层时，毫安表的指针发生了偏转．若将电路中的滑动变阻器的滑片P向右移动到某一位置时，毫安表的读数恰好减小到零，此时电压表读数为U．

①若增加黄光照射的强度，则毫安表             （选填“有”或“无”）示数．若改用蓝光照射光电管中的金属涂层，则毫安表           （选填“有”或“无”）示数．

②若用几种都能使金属涂层发生光电效应的不同频率ν的光照射光电管中的金属涂层，分别测出能使毫安表的读数恰好减小到零时的不同电压值U，通过U和ν的几组对应数据，作出U —ν图象．则利用电子的电荷量e与U—ν图象的     就可求得普朗克常量h（用纵轴表示U、横轴表示ν）．

手法为达到“深透”需做到：持久、有力、均匀与：（）

A.连续

B.节律

C.柔和

D.技巧

E.善变

一个异步串行发送器，发送具有8位数据位的字符，在系统中使用一位作偶校验，2个停止位。若每秒钟发送100个字符，它的波特率和位周期是多少？

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