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【简答题】
某蛋白质的饱和溶液含溶质5.18g·L -1 ，293.15K时渗透压为0.413kPa，计算此蛋白质的摩尔质量。
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反馈参考答案：
举一反三
【单选题】有一面值为1 000元的债券,期限5年,票面利率为8%,每年支付一次利息,到期还本。假设贴现率为6%,如果每年付息一次,其价值为( )。
A.
1 084.29
B.
1086.29
C.
1088.29
D.
1090.29
【单选题】听力原文：W: Professor Newman, a few of us at the hack didn't get a copy of your reading assignment. M: Well, there are only thirty-eight names on my class list, and I didn't bring any spare copies Q: What...
A.
Some students at the back cannot hear the professor.
B.
The professor has changed his reading assignment.
C.
Some of the students are not on the professor's list.
D.
The professor has brought extra copies of his assignment.
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