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【单选题】
液液萃取的基本原理是利用物质在两相中的( )。
A.
不同
B.
溶解度不同
C.
分配系数不同
D.
存在形式不同
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举一反三
【单选题】下列国家中,与我国的南面接壤的有
A.
越南、老挝、泰国
B.
越南、老挝、柬埔寨
C.
越南、老挝、缅甸
D.
尼泊尔、老挝、孟加拉国
【单选题】We can make mistakes at any age. Some mistakes we make are about money. But most mistakes are about people. 'Did Jerry really care when I broke up with Helen? .... When I got that great job, did Jim r...
A.
how to interpret what people say
B.
what to do when. you listen to others talking
C.
how to avoid mistakes when you communicate with people
D.
why we go wrong with people sometimes
【简答题】读下图,完成下列要求。 (1)与我国接壤的国家有_______个,其中面积最大的邻国是___________。 (2)填出主要海域名称:A_______,B_______,C_______,D_______海峡,E_______海峡。 (3)填写主要邻国或隔海相望的国家名称: ①___________,②___________,③___________,④___________,⑤________...
【简答题】读“中国政区示意图”,回答下列问题。(9分) (1)我国疆域辽阔,也是自然灾害频繁发生的国家。2012年5月11日,A 省与B 省交界发生4.9级地震;2012年7月,第8号台风“韦森特”经过① 海海域从东南沿海登陆,其影响严重的省区中,C是 省;2013年1月11日,D 省发生山体滑坡。 (2)我国陆地面积为 平方千米。 (3)壮族是我国人口最多的少数民族,其主要分布在 省区(填字母);E地与N...
【简答题】屈原,名_____,字原,______时期楚国人。是我国文学史上第一位伟大的______诗人。
【单选题】We can make mistakes at any age. Some mistakes we make are about money. But most mistakes are about people. One might say, 'Did Jerry care when I broke up with Helen?' 'When I got that great job, did ...
A.
feels happy, thinking of how nice his friends were to him
B.
feels he may not have read his friends true feelings correctly
C.
thinks it was a mistake to have broken up with his girl friend, Helen
D.
is sorry that his friends let him down
【单选题】发电机 “N”与“E”或”B”间的反向阻值应为( )
A.
40-50欧
B.
65-80欧
C.
71千欧
D.
710千欧
【单选题】我国文学史上第一位诗人的名字是
A.
孔子
B.
李白
C.
屈原
D.
贾谊
【简答题】我国地域辽阔,与众多国家接壤。据此回答下列各题。 小题1:与我国接壤,位于南亚面积最大的国家是                               (  ) A.日本 B.印度 C.韩国 D.伊朗 小题2:该国气候最主要的是                                                  (  ) A.热带季风气候 B.热带草原气候 C.地中海气候 D.热...
【单选题】We can make mistakes at any age. Some mistakes we make are about money, but most mistakes are about people. 'Did Jerry really care when I broke up with Helen?' 'When I got that great job, did Jim real...
A.
feels happy, thinking of how nice his friends were to him
B.
feels he may not have'read' his friends'true feelings correctly
C.
thinks it was a mistake to view Jim as a friend
D.
is sorry that his friends let him down
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