Because of their characteristics as double organisms, it is difficult to classify lichens.
Over 15,000 varieties of lichens have been identified.
Double organisms should always be classified as separate species.
Taxonomists always find it difficult to classify new species of plants.
第1题:
Which of the following best summarizes the main idea of the passage?
A.The Internet is posing a threat to publishers.
B.A new mode of publication is emerging.
C.Authors welcome the new channel for publication.
D.Publication is rendered easier by online service.
第2题:
A.Firewall
B.DMZ
C.Switch
D.IDS
第3题:
Which of the following best summarizes the main idea of the text?
[A] The Internet is posing a threat to publishers.
[B] A new mode of publication is emerging.
[C] Authors welcome the new channel for publication.
[D] Publication is rendered easier by online service.
正于28题分析的,本文中心介绍了一种出版新的趋势——网络出版。B正是这一观点的高度概括,故答案为B.
第4题:
第5题:
Which of the following can best summarize the main idea of this text?( )
[A] The moral decaying deserves more research by sociologists.
[B] Marriage break-up stems from sex inequalities.
[C] Husband and wife have different expectations from their marriage.
[D] Conversational patterns between man and wife are different.
第6题:
The best statement of the main idea of this passage is that ______.
A. human brains differ considerably
B. the brain a person is born with is important in determining his intelligence
C. environment is crucial in determining a person's intelligence
D. a person who is handicapped environmentally will never attain the level of intelligence of which he is capable
第7题:
A. Incident response
B. Asset management
C. Patch management
D. Policies and procedures
第8题:
Which of the following best describes the writer’s idea?
A. Women should get equal pay for equal work to that of men.
B. Women should strengthen (加强) themselves.
C. The Government ought to protect women against getting paid less than men.
D. Some of the jobs that women do are of great importance.
第9题:
第10题:
Which of the following is BEST for providing network security?()