单项选择题

The author seems to consider it to be ______ for those Swedish smokers to switch to smokeless tobacco.

A．valuable
B．pointless
C．useless
D．irrational
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It can be inferred from the passage that the author ______ Brad Rodu.
A．is dissatisfied with
B．is suspicious of
C．is sympathetic with
D．is supportive of
单项选择题
What is indicated as a possible future development in television
A．wall-size projection
B．mini-projection
C．color projection
D．true-size projection
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