题目内容

图中标志的含义是。

A. 过水路面
B. 注意溅水
C. 易滑
D. 驼峰桥

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Now, go through TEXT E quickly and answer Question 81.
Pickpockets operate in crowded places in the hope of getting easy pickings. Don't make
it easy for them. Keep wallets, purses and other valuables out of sight. If wearing a jacket,
an inside pocket is the best place to use. If not, your possessions are safest in a pocket with
a button-down flap.
Please co-operate with the police by reporting any crime or suspicious activity immedi-
ately, either by dialing 110 or calling at your nearest police station.
Text F
First read the following question.
82. The main topic of the passage is _________

A. agricultural products.
B. irrigation methods.
C. natural resources.
D. water shortages.

设随机变量X，Y相互独立，且X~N（2，1），Y~N（1，1），则（）

A. the others B. all others C. these D. those

A. the others
B. all others
C. these
D. those

Early cancer screening Can help reduce significantly

A. the death rates for a11 chronic diseases．
B. the kinds of cancer attacking people．
C. the incidence rate for cancer．
D. the death rate for cancer．