试题与答案

某产品经三道工序制成。已知第一、二、三工序的在产品件数和在产品定额工时分别为10件、

题型:单项选择题

题目:

某产品经三道工序制成。已知第一、二、三工序的在产品件数和在产品定额工时分别为10件、20件、30件,10小时、20小时、20小时,则在产品的约当产量为( )。

A.60件

B.44件

C.33件

D.22件

答案:

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Passage Four

Roger Federer Lights up the Arabian Night
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Plenty of people will be glad Tim Henman was not here to trouble Roger Federer once more last night,as the seedings said he should have been.Popular with the expatriates though he may be,and capable of upsetting Federer though he undoubtedly is,there is nothing quite so stirring as seeing one of the most gifted world No l s of all in full cry.
Instead of struggling with his jinx player,Federer imposed a spell of his own.He beat Andrei Pavel,whom Henman beat in the Paris Masters final,by6-3,6-3,and strode the court like a ruler who knows his aura is expanding.
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Federer insisted he was not at his best-"I haven’t wanted to chase the fines as much as I should,"he said.
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That spurred Youzhny to make a top-level breakthrough seven yearslater,and to develop perseverance which has been revealed this week in a 6-3,1-6,6-1 quarter-final win over Rafael Nadal yesterday in heat which would have made a camel protest,and in a recovery from two days’vomiting after eating Japanese seafood."My cap felt as if it weighed five kilos."he said.

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B.Roger Federer was hardly any match to Tim Henman

C.Tim Henman avoided meeting Roger Federer in the match

D.gifted world No ls are usually reduced to a state of tears when having lost a game

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