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【单选题】
在光栅光谱中,下列描述正确的是( )
A.
级次越高，各种波长谱线展得越开，谱线越宽
B.
级次越高，各种波长的谱线展的越开，谱线越窄
C.
级次越高，各种波长谱线越展不开，谱线越窄
D.
级次越高，各种波长谱线越展不开，谱线越宽
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参考答案：
举一反三
【简答题】A．Eighty. B．Eighty-six. C．Sixty-eight. D．Forty-three.
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【单选题】"Eighty-eight thousand, two hundred and ten" is ______.
A.
8821010
B.
188210
C.
88210
D.
18210
查看完整题目与答案
【单选题】The textile mill has over 8,000 workers, ______ are women.
A.
eighty percent of those
B.
eighty percent of which
C.
eighty percent of whom
D.
eighty percent of that
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【判断题】设计听、说、读、写、看等活动时,老师既要关注具体技能的训练,也要关注技能的综合运用。
A.
正确
B.
错误
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【简答题】A．Six minutes. B．Eighty minutes. C．Sixty minutes. D．Eight minutes.
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【简答题】宋代词人宋祁的《鹧鸪天》这样写道：“金作屋，玉为笼，车如流水马如游龙。刘郎已恨蓬山远，更隔蓬山几万重。”化用了哪两位文人的哪两首作品？
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【单选题】PCB设计时,画导线的宽度主要应该由( )因素决定
A.
通电电流大小
B.
承担电压高低
C.
距离远近
D.
都不对
查看完整题目与答案
【单选题】烷基化工艺可分为( )两种方法。
A.
液相和气相
B.
固相和气相
C.
液相和固相
D.
气相和凝聚相
查看完整题目与答案
【单选题】—How much is your computer? —It' s _____ dollars. [     ]
A.
four thousands and eight hundred
B.
four thousands and eight hundreds
C.
four thousand eight hundred
D.
four thousands eight hundred
查看完整题目与答案
【简答题】Last month, students from one hundred and three universities in eighty-eight countries took part in an international computer programming contest, which took place in Harbin, China. Three-person teams...
查看完整题目与答案
相关题目：
【简答题】A．Eighty. B．Eighty-six. C．Sixty-eight. D．Forty-three.
查看完整题目与答案
【单选题】"Eighty-eight thousand, two hundred and ten" is ______.
A.
8821010
B.
188210
C.
88210
D.
18210
查看完整题目与答案
【单选题】The textile mill has over 8,000 workers, ______ are women.
A.
eighty percent of those
B.
eighty percent of which
C.
eighty percent of whom
D.
eighty percent of that
查看完整题目与答案
【判断题】设计听、说、读、写、看等活动时,老师既要关注具体技能的训练,也要关注技能的综合运用。
A.
正确
B.
错误
查看完整题目与答案
【简答题】A．Six minutes. B．Eighty minutes. C．Sixty minutes. D．Eight minutes.
查看完整题目与答案
【简答题】宋代词人宋祁的《鹧鸪天》这样写道：“金作屋，玉为笼，车如流水马如游龙。刘郎已恨蓬山远，更隔蓬山几万重。”化用了哪两位文人的哪两首作品？
查看完整题目与答案
【单选题】PCB设计时,画导线的宽度主要应该由( )因素决定
A.
通电电流大小
B.
承担电压高低
C.
距离远近
D.
都不对
查看完整题目与答案
【单选题】烷基化工艺可分为( )两种方法。
A.
液相和气相
B.
固相和气相
C.
液相和固相
D.
气相和凝聚相
查看完整题目与答案
【单选题】—How much is your computer? —It' s _____ dollars. [     ]
A.
four thousands and eight hundred
B.
four thousands and eight hundreds
C.
four thousand eight hundred
D.
four thousands eight hundred
查看完整题目与答案
【简答题】Last month, students from one hundred and three universities in eighty-eight countries took part in an international computer programming contest, which took place in Harbin, China. Three-person teams...
查看完整题目与答案
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