皮皮学,免费搜题
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搜题
【单选题】
甾体皂苷不具有的特征是:
A.
其苷键可被酶、酸水解
B.
具有表面活性和溶血作用
C.
可溶于水、正丁醇
D.
苷元C3位有羟基
E.
苷元由37个碳原子组成
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【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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