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【判断题】
未知化合物和已知化合物的紫外吸收光谱(峰个数、λmax)一致时,可以认为两者具有相同或者相似的发色基团。( )
A.
正确
B.
错误
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参考答案:
举一反三
【单选题】Tokyo( 东京) is larger than_____ in India.
A.
any other city
B.
any city
C.
another city
D.
other city
【单选题】-Which city has _history in the world ,Beijing ,New York or Tokyo(东京) ? -Beijing ,of course. [     ]
A.
long
B.
long
C.
longest
D.
the longest
【单选题】手掌向上以接纳落下的小物体主要是为了训练以下哪项功能
A.
腕背伸
B.
对掌
C.
对指
D.
前臂旋后
E.
腕屈曲
【单选题】手掌向上以接纳落下的小物体主要是为了训练以下哪项功能
A.
腕背伸
B.
对掌
C.
对指
D.
前臂旋后
E.
腕背屈
【简答题】— Is Shanghai bigger than Tokyo (东京)? — No. Tokyo has over 30 million people, it is bigger than _____ in China. [     ] A. any other city B any other cities C. any cities D. any city
【单选题】Tokyo(东京) is one of the most confusing cities in the world. Over 20 million people live and work in the Tokyo area, and many world-famous companies have their offices there. But most streets don't hav...
A.
it has a very large population
B.
most streets don't have names
C.
people in Tokyo are bad at giving directions
D.
too many famous companies have their offices there
【判断题】Elle va rencontrer Anne à Tokyo(东京).
A.
正确
B.
错误
【单选题】为使三极管集电极的电流增多,可以:
A.
增大基极电阻;
B.
增大集电极电阻
C.
减小基极电阻
D.
减小放大倍数
【简答题】海姆立克急救法和心肺复苏法的按压位置分别是
【简答题】海姆立克急救法和心肺复苏法的按压位置分别是 1、__________ 2、__________
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