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【单选题】
命题公式 中极小项的个数为( ),成真赋值的个数为( )。A.
0;
B.
1;
C.
2;
D.
3 。
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举一反三
【单选题】What is the use of the books of Admiralty List of Lights and Fog Signals? Their use is to ______
A.
mention signal stations and ice, storm, traffic and port signals
B.
give the international numbers of lights
C.
give the correction of the lights and fog signals
D.
give the information on the lights and fog signals
【单选题】If we had been informed in time, we the goods for you.
A.
will have reserved
B.
reserve
C.
will reserve
D.
would have reserved
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