The author's purpose in writing this passage is to ______.
A. call on people to reject e-books
B. draw people's attention to the disadvantages of e-books
C. criticize schools and business that don't provide e-books
D. encourage people to use e-books
查看答案
The word "boost"(Para. 3) probably means ______.
A. to cut
B. to lower
C. to keep
D. to increase
A．He thinks the book should include more information.B．He doesn't think it necessary t
A. He thinks the book should include more information.
B. He doesn't think it necessary to provide the answers.
C. The answers will be added in a later edition.
D. The book does include the answers.
某产品各零部件功能重要程度采用0～1评分法评分的结果如下表：则在修正各功能累计得分的前提下，零部件Ⅲ的功能重要性系数为()。
A. 0.13
B. 0.20
C. 0.25
D. 0.33
【B11】
A. ever
B. then
C. never
D. once
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