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【简答题】
金属离子 M 与络合剂 L 生成 n 级络合物,其副反应系数 α M(L) 的计算公式是 。若溶液中有两种络合剂 L 和 A 同时对金属离子 M 产生副反应,其总副反应系数 α M 可表示为 。
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【单选题】听力原文： Investment in the public sector, such as electricity, irrigation, public services and transport increased by about 10%, although the emphasis moved to the transport and away from the other secto...
A.
Because people saved less.
B.
Because people were wealthy.
C.
Because people consumed less.
D.
Because expenditures on luxuries increased.
【简答题】根据人们观赏花卉部位的不同分类，属于观果的花卉是：
【简答题】请同学们写一下这一学期课程的学习反思: 1. 通过这门课程的学习,您在哪些方面有收获,具体阐述。 2.对于这门课程的教学过程,哪些方面是你认可的,为什么?哪些方面是需要改进的,该如何改进?以及你想在其他哪些方面获得更多的帮助,具体问题是什么? 3.其他你想表达的也可以。 字数没有要求,真情实感就好! 提交要求:作业规范命名——学号+姓名+学习反思与感悟
【单选题】听力原文： A storm that dropped a foot or more of snow bogged down highways and closed schools on Tuesday from the Plains to New England, and some travelers had to spend the night on a church floor. 'I lik...
A.
A storm.
B.
A car accident.
C.
A driver driving too fast.
D.
A flood.
【简答题】根据人们观赏花卉部位的不同分类，属于观叶的花卉是：
【单选题】听力原文：Isn't the Public Library open in the evening? (A) It's a public performance. (B) No, another day perhaps. (C) Yes, until 8 p.m. (24)
A.
B.
【单选题】听力原文：The completion of the new stadium was not on the dot and was available for public use until last September. (22)
A.
The newly-completed stadium was on the dot.
B.
The stadium was not finished in time.
C.
The stadium was open to public before last September.
D.
The stadium couldn't be used even after last September.
【单选题】听力原文： Sports and games are very useful for character training. In their lessons at school, boys and girls may learn about such virtues as unselfishness, courage, discipline and love of one' s country....
A.
It' s good for training one' s character but not good for one' s health.
B.
It' cannot prepare pupils to be good citizens.
C.
It has less effect on a child' s character than sports and games.
D.
It' s as important as after - class activities.
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