1．It is unimaginable to do research nowadays without the help of a computer.
劳动合同生效的条件是()。
A. 劳动合同依法订立即具有法律约束力
B. 劳动合同自鉴证之日起生效
C. 劳动合同自公证之日起生效
D. 劳动合同自当事人签字之日起生效
下列案件审理，可以公开进行的是()。
A. 涉及国家机密的
B. 涉及商业秘密的
C. 涉及个人隐私的
D. 涉及未成年人犯罪的
4．Which of the following is implied but not stated？
A. Pupils can use computers to do their homework.
B. Advanced techniques may bring both benefits and harms to our society.
C. The distinction between micros and mainframes has become blurred.
D. A great variety of information sources are available on computer networks.
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