问题
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A.becauseB.forC.ofD.by
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The reason______I cant come is that I have to work late.A.becauseB.forC.asD.why
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The oil must have been used up,______the light went out.A.becauseB.forC.sinceD.as
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He must have heard the bad news, he looks upset.A、becauseB、forC、whenD、as
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SQL语句中条件短语的关键字是A.WHEREB.FORC.WHILED.CONDITION
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SQL语句中查询条件短语的关键字是( )。A.WHEREB.FORC.WHILED.CONDIT