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【单选题】
在屈肘动作中主动肌是()A.
三角肌
B.
胸大肌
C.
肱二头肌
D.
肱三头肌
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举一反三
【单选题】Question 7 is based on the news report you have just heard.
A.
Global warming.
B.
Ever-rising prices.
C.
Government regulation.
D.
Diminishing investment.
【单选题】Question 7 is based on the news report you have just heard.
A.
It uses the latest aviation technology.
B.
It flies faster than a commercial jet.
C.
It is a safer means of transportation.
D.
It is more environmentally friendly.
【单选题】TMB经HRP作用后变为蓝色,加入硫酸终止反应后变为黄色,最大吸收峰波长为( )
A.
405nm
B.
280nm
C.
450nm
D.
492nm
E.
630nm
【单选题】Question 7 is based on the news report you have just heard.
A.
From its genes
B.
From its length
C.
From its origin
D.
From its colour
【简答题】含花青素的果蔬制品,如葡萄汁、草莓酱、桃子罐头、芹菜汁等,必须用()处理,使花青素水成为无色的葡萄糖和配基,以保证产品质量。
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