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【判断题】
一个计算机网络应当具有的3个主要组成部分是：若干个主机，一个通信子网、一些列的协议A.
正确
B.
错误
手机使用
分享
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反馈参考答案：
举一反三
【单选题】It can be learned from the last paragraph that ______.
A.
genetic tests for most of the diseases can be produced now
B.
gene tests are only suitable for those who have a strong family history of disease
C.
almost all diseases can be cured with the development of the gene testing
D.
the writer is optimistic about the future of gene testing
【单选题】Which of the following is the substance mentioned that helps to protect against heart disease?
A.
Lipoproteins.
B.
Cholesterol.
C.
Both.
D.
Neither.
【单选题】There is evidence that the usual variety of high blood pressure is, in part, a family disease. Since families have similar genes as well as similar environment, family diseases could be due to shared ...
A.
When salt is added to their diets, rats and men react in much the same way.
B.
The near future will see a cure for high blood pressure.
C.
Modem research has shown that high blood pressure is a result of salt in the diet.
D.
A tendency toward high blood pressure may be a hereditary factor.
【单选题】After switching on the computer,_____a floppy dise into the dise drive.
A.
get into
B.
invert
C.
insert
【单选题】________ on dise, avoir une assurance est indispensable.
A.
Quoiqu'
B.
Quoi qu'
C.
Quel qu'
D.
Quelqu'
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