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【单选题】
测定中出现下列情况 , 属于偶然误差的是A.
砝码被腐蚀
B.
滴定管体积不准确
C.
天平的两臂不等长
D.
在称量时样品吸收了少量的水分
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反馈参考答案：
举一反三
【简答题】斜度和锥度的定义及标注形式是什么？
【简答题】Questions 1 to 5 are based on the following passage. Before, whenever we had wealth, we started discussing poverty Why not now? Why is the current politics of wealth and poverty seemingly about wealth...
【单选题】__________ generate(s) prices whenever securities are bought or sold.
A.
Financial markets
B.
Financial institutions
C.
The Federal Reserve
D.
The Securities and Exchange Commission
【简答题】大脑前动脉起自________动脉，大脑中动脉起自________动脉，大脑后动脉起自________动脉。
【单选题】Section B Directions: There are 2 passages in this section. Each passage is followed by some questions or unfinished statements. For each of them there are four choices marked A, B, C and D. You shoul...
A.
difficult
B.
past
C.
wealthy
D.
distant
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