In the authors eyes, what is the basic purpose of advertising？
A. Distribution of information.
B. Providing information.
C. To persuade consumer to buy the products.
D. Reducing the cost for promotion.
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小儿在一定范围内由于受到遗传、营养、环境、教养等因素的影响而产生了生长发育的
A. 连续性
B. 各系统器官发育的不平衡性
C. 顺序性
D. 个体差异
E. 阶段性
若婴儿正常发育，根据目前所处的语言发育阶段，他能够
A. 发出元音
B. 发出辅音
C. 发出喉音
D. 发出“爸爸”、“妈妈”的音节
E. 能通过哭闹表达意思
Whats the broad consensus of opinion found by the panel in a draft preface to the recommendations？
A. NBAC would ask Clinton"s 90-day ban on federal funds for human cloning be extended indefinitely.
B. It is morally unacceptable to attempt to create a human child by adult nuclear cloning.
C. It is a crime for private funding to be used for human cloning.
D. The research on the cloning of human DNA or cells are routine projects in molecular biology.
The word "pervasive"(Lines 1~2, Paragraph 2)might mean______.
A. widespread
B. overwhelming
C. piercing
D. fashionable
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