问答题
各种操作因素对于复杂反应的影响虽然各不相同,但通常温度升高有利于活化能 的反应的选择性。(大、小)
各种操作因素对于复杂反应的影响虽然各不相同,但通常温度升高有利于活化能 的反应的选择性。(大、小)
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单项选择题
At the end of 2004, there were around 6,000 foreign printing companies in China,
At the end of 2004, there were around 6,000 foreign printing companies in China,
A.made
B.to make
C.making
D.having made