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【单选题】
对丙酸(沸点为141°C)和乙酰氯(沸点为51°C)沸点差的解释中正确的是A.
由于丙酸中的分子含有羟基,具有缔合作用,而乙酰氯分子中没有绛合作用,因此在沸点上表现出明显差异
B.
由于丙酸的摩尔质量比乙酰氯的摩尔质量小,因此在沸点上表现出明显差异
C.
由于丙酸是线性分子,而乙酰氯为网状分子,因此在沸点上表现出明显差异
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【简答题】others 1-5;
【单选题】If there are no additional processing costs incurred after the splitoff point, the amount of joint cost of each production run allocated to Andro on a sales value at splitoff basis is
A.
$300,000.
B.
$225,000.
C.
$175,000.
D.
$100,000.
【简答题】完形填空 As students we should learn to help others. There is a special 1 for us to help others at our school. Last year we went to an old man's 2 , and we sangsongs, danced and didhousework for 3 . Th...
【判断题】Costs incurred after discovery of a natural resource but before production begins are reported as expenses of the period in which the expenditures are made.
A.
正确
B.
错误
【单选题】Task 1 Read the following paragraph and identify the irrelevant sentence. 1. Different people spend their weekends in different ways. 2. Some enjoy going to the mountains to hike, ski or just relax. 3...
A.
1
B.
2
C.
3
D.
4
E.
5
F.
6
【简答题】橄榄型收入分配格局与其他收入分配格局相比,优点主要有哪些?
【简答题】Write 2 sentences according to each type in 录屏 of week 1 and you are also required to give at least 5 comments on others by translating others sentences or correcting their mistakes if there are.
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