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题目内容
（甘肃开放大学 英语阅读1）
When there is an absence of reliable information about drugs, the risks involved in using them are greatly increased.
A.
There is no reliable information about drugs.
B.
Using drugs is more dangerous when we don’t know what effects and dangers are involved.
C.
The risks involved in using drugs have increase
D.
d. People should try to find out about drugs before using them.
E.
There are no risks involved in using drugs if we have reliable information about them.
A.
There is no reliable information about drugs.
B.
Using drugs is more dangerous when we don’t know what effects and dangers are involved.
C.
The risks involved in using drugs have increase
D.
d. People should try to find out about drugs before using them.
E.
There are no risks involved in using drugs if we have reliable information about them.
参考答案