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【单选题】
从中药提取苷类成分时,为避免产生次级苷,应采用( )
A.
沸水
B.
三氯甲烷
C.
石油醚
D.
正丁醇
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参考答案:
举一反三
【单选题】建筑工程图中 , 球体半径 200mm, 标注正确的是( )。
A.
R 200
B.
Φ 200
C.
S Φ 200
D.
S R 200
【判断题】订货点的 影响 因素 是 订货提前期、平均需求量和安全库存.
A.
正确
B.
错误
【单选题】Which one is oval in shape in White House?
A.
The East Room.
B.
The Red Room.
C.
The Blue Room.
D.
The Green Room.
【单选题】某一进程在运行时因等待某种条件暂停,将进入 ( ) 。
A.
就绪状态
B.
停止状态
C.
等待状态
D.
静止状态
【简答题】白炽灯是利用电流通过灯丝电阻的热效应将电能转换成( ) 和 ( )。
【简答题】The blue tits(山雀) have been inspecting the nest-box again this year. The male is the house-hunter but the female will make the final choice. He lands at the hole and turns his head to expose his white...
【单选题】Please enter the house door is blue.
A.
which
B.
that
C.
whose
D.
where
【单选题】The Blue House is a metonymy(转喻) of ____________.
A.
American government
B.
Japanese government
C.
British government
D.
South Korean government
【单选题】选择填空。 The blue house is ______ the school and the hospital. [     ]
A.
in
B.
between
C.
next
【简答题】I’m a lovely girl. You can call me Li Li. I like the blue sky and white cloud. I also like colourful flowers. I love my family. I love my father and mother. I go to school from Monday to Friday. Our h...
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