单项选择题

霉菌在传统制醋工艺中起到的主要作用为

A.分解发酵原料中大分子物质
B.产生醋酸菌代谢底物——乙醇
C.发酵制备醋酸
D.赋予产品特殊香味物质
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单项选择题
Please Listen to the following TED talk and answer the questions followed. (8分-8分29秒) To argue against the claim that the Sun is the main cause of climate change held by climate change deniers, the speaker argues the followings EXCEPT
A.The measured energy imbalance occurred during the deepest solar minimum in the record, when the Sun's energy reaching Earth was least
B.Yet, there was more energy coming in than going out
C.This shows that the effect of the Sun's variations on climate is overwhelmed by the increasing greenhouse gasses, mainly from burning fossil fuels
D.The deep ocean is also gaining heat at a smaller rate, and energy is going into the net melting of ice all around the planet
判断题
7.完全互换装配法常用于高精度的多环尺寸链的大批大量生产装配中。( ) 正确 错误
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