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【判断题】
4用户可以根据负载特性进行调整V/f曲线,以达到最优的节能。A.
正确
B.
错误
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举一反三
【单选题】The opportunity McCullum had looked forward ____ at last when he was named head coach at Western Michigan. [ ]
A.
came
B.
to coming
C.
to came
D.
to come
【单选题】每句划线部分中有一个错误,请将错误之处的选项挑出。 6.When at last he has become rich, no pleasure remains to him except harry other people.
A.
B.
C.
D
【简答题】椒花蛾白天栖息于树干上，夜间活动。据史料记载，19世纪中叶以前，英国椒花蛾的身体和翅大多是带有斑点的淡灰色，它们和树干上的地衣颜色一致，借此可逃避鸟类的捕食。暗黑色的椒花蛾也有，但极少见。1845年在英国的工业区发现了一只暗黑色的椒花蛾，以后在各工业区都陆续发现了暗黑色椒花蛾，并且越来越多。到1898年，各工业地区暗黑色椒花蛾的数量大大超过灰色椒花蛾，比例可达98%以上。为什么暗黑色椒花蛾随着工业...
【简答题】椒花蛾白天栖息于树干上，夜间活动。据史料记载，19世纪中叶以前，英国椒花蛾的身体和翅大多是带有斑点的淡灰色，它们和树干上的地衣颜色一致，借此可逃避鸟类的捕食。暗黑色的椒花蛾也有，但极少见。1845年在英国的工业区发现了一只暗黑色的椒花蛾，以后在各工业区都陆续发现了暗黑色椒花蛾，并且越来越多。到1898年，各工业地区暗黑色椒花蛾的数量大大超过灰斑色椒花蛾，比例可达98%以上。为什么暗黑色椒花蛾随着工...
【单选题】The opportunity Jack had looked forward________at last when he was named chief engineer in the project.
A.
came
B.
to coming
C.
to came
D.
to come
【简答题】When at last he has become rich, no pleasure remains to him except harrying other people by exhortations to imitate his noble example.
【多选题】以下句中可以省略翻译的是 When at last he stood upon the bluff, he turned to his little sister and looked upon her sorrowfully.
A.
when
B.
第二个he
C.
and
D.
upon
【简答题】作业习题: P79: 9 ; 10 ( 1 )、( 3 ); 11 ; 12 ; 19
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