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【单选题】
测定水分最为专一,也是测定水分最为准确的化学方法是A.
直接干燥法
B.
蒸馏法
C.
减压蒸馏法
D.
卡尔·费休法
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皮皮学刷刷变学霸
举一反三
【判断题】The United States is the world’s largest manufacturer, and its manufacturing output was greater than that of the manufacturing output of China, India, and Brazil combined.
A.
正确
B.
错误
【简答题】一. Task-based reading. 选句填空。 It’s hard to turn down tasty bananas. ___1____. However, British scientists say that the fruit may disappear by 2050. One reason for this is climate change. Scientists col...
【判断题】The United States is the world’s largest manufacturer, and its manufacturingoutput was greater than that of the manufacturing output of China, India, and Brazil combined.
A.
正确
B.
错误
【简答题】Part II. Reading Comprehension Directions: There are three passages in this part. Each passage is followed by some questions or unfinished statements. For each of them there are four choices marked A...
【单选题】The world’s rich countries, such as Japan and Germany, have income per person that is about ________ times the income per person in the world’s poor countries, such as Pakistan and India.
A.
3
B.
6
C.
12
D.
36
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