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【单选题】
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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【简答题】A．Eleven dollars for the . B．Five dollars for the . C．One dollar per mile. D．Twenty-five cents or less per mile.
【单选题】前角、后角、楔角之和为( ),主偏角、副偏角、刀尖角之和为( )。
A.
90 180
B.
90 ° 90 °
C.
180 ° 180 °
D.
180 ° 90 °
【单选题】Whether a ship is sailing before the wind or sailing in the rough sea, we must reduce the fuel injection of the main engineFor the former one, it aims to prevent the main engine being , while for the ...
A.
overspeed / overload
B.
overload / overspeed
C.
over torque / overspeed
D.
low mechanical efficiency / overload
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