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【单选题】
有两种不同有色溶液均符合-比尔定律,测定时若比色皿厚度,入射光强度及溶液浓度皆相等,以下说法正确的是:
A.
透射光强度相等
B.
吸光度相等
C.
吸光系数相等
D.
以上说法都不对
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【单选题】Street sellers particularly in developing countries, supply large amounts of food【H1】people on low incomes. This sector also employs some 6%～25% of the work force, mainly women, in developing countrie...
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【单选题】普通螺纹标记为M16×Ph3P1.5（two starts）-6H/7g6g-S-LH，外螺纹的中径公差为( )。
A.
6H
B.
7g
C.
6g
D.
7g和6g
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【简答题】Direction: Complete the sentence with a proper phrase on P. 42 of your textbook. Make suitable changes if necessary. Good communications normally better understanding.
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【单选题】普通螺纹标记为M16×Ph3P1.5（two starts）-6H/6g7g-S-LH，外螺纹的中径公差为( )。
A.
6H
B.
7g
C.
6g
D.
7g和6g
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【单选题】In rich countries, 'after years of advertising restrictions and campaigns warning of the health risks of smoking, consumers are starting to kick the habit. But consumption is still growing strongly in...
A.
In rich countries people are becoming more aware of the health risks of cigarettes and smokers are starting to quit.
B.
More than half of the smokers in the world are in Asia.
C.
More and more people in poorer countries are getting into the habit of smoking.
D.
Despite years' cigarette advertising restrictions in rich countries, cigarette sales worldwide are ever increasing.
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【简答题】animation是由谢益辉建立的概率统计动态演示程序包, 请用命令或菜单的方法安装并加载animation, 并尝试下面的二个例子: ˆ 蒲丰投针试验: buffon.needle(nmax = 500, interval = 0) ˆ 中心极限定理: f = function(n) rchisq(n, 5) clt.ani(FUN = f) 把运行结果粘贴到
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【单选题】Normally, better steerage will be achieved if a vessel is trimmed by the ( ).
A.
head
B.
stem
C.
stern
D.
bow
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【单选题】Street sellers particularly in developing countries, supply large amounts of food【H1】people on low incomes. This sector also employs some 6%～25% of the work force, mainly women, in developing countrie...
A.
for
B.
to
C.
by
D.
at
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【判断题】空间是均匀分布的
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正确
B.
错误
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【简答题】今年9月到明年1月在常州学习韩国语。
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【判断题】对流是混合无中各组分在外界因素作用下相互想其他组分所占的空间进行流动，以达到各组分在空间的均匀分布的过程。
A.
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【单选题】普通螺纹标记为M16×Ph3P1.5（two starts）-6H/7g6g-S-LH，外螺纹的中径公差为( )。
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C.
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D.
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查看完整题目与答案
【简答题】Direction: Complete the sentence with a proper phrase on P. 42 of your textbook. Make suitable changes if necessary. Good communications normally better understanding.
查看完整题目与答案
【单选题】普通螺纹标记为M16×Ph3P1.5（two starts）-6H/6g7g-S-LH，外螺纹的中径公差为( )。
A.
6H
B.
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C.
6g
D.
7g和6g
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【单选题】In rich countries, 'after years of advertising restrictions and campaigns warning of the health risks of smoking, consumers are starting to kick the habit. But consumption is still growing strongly in...
A.
In rich countries people are becoming more aware of the health risks of cigarettes and smokers are starting to quit.
B.
More than half of the smokers in the world are in Asia.
C.
More and more people in poorer countries are getting into the habit of smoking.
D.
Despite years' cigarette advertising restrictions in rich countries, cigarette sales worldwide are ever increasing.
查看完整题目与答案
【简答题】animation是由谢益辉建立的概率统计动态演示程序包, 请用命令或菜单的方法安装并加载animation, 并尝试下面的二个例子: ˆ 蒲丰投针试验: buffon.needle(nmax = 500, interval = 0) ˆ 中心极限定理: f = function(n) rchisq(n, 5) clt.ani(FUN = f) 把运行结果粘贴到
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【单选题】Normally, better steerage will be achieved if a vessel is trimmed by the ( ).
A.
head
B.
stem
C.
stern
D.
bow
查看完整题目与答案
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