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【单选题】
(1)更换溶剂、(2)加电动机,提供旋转速度、(3)加电场、(4)用普通滤纸做容器 溶胶净化过程中,上述那些操作可以加快渗析速度()
A.
(1)、(2)|(4)
B.
(2)、(3)、(4)
C.
(3)、(4)、(1)
D.
(1)、(2)、(3)
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举一反三
【单选题】He is from ____________ and he’s English.
A.
China
B.
the USA
C.
England
D.
English
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【单选题】细胞核重复有丝分裂,最后细胞质再分裂,经过分裂,一个个体同时产生多个个体,原生动物的这种生殖方式为()。
A.
二分裂
B.
出芽生殖
C.
复分裂
D.
孢子生殖
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【单选题】—How is he getting on with his spoken English? —Great. Now he can speak English ______ his English teacher. [ ]
A.
as better as
B.
as well as
C.
as good as
D.
as many as
查看完整题目与答案
【单选题】世界上最大的山系是( )
A.
阿尔卑斯山系
B.
喜马拉雅山系
C.
阿巴拉契亚山系
D.
科迪勒拉山系
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【多选题】工程制图中,正投影表现的性质:
A.
集聚性。
B.
实形性。
C.
类似性。
D.
上述三种都存在,要满足不同的条件。
查看完整题目与答案
【单选题】子程序结束指令为( )
A.
M30
B.
M02
C.
M99
D.
M98
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【单选题】世界上最大的山系是 ( )
A.
喜玛拉雅山脉
B.
科迪勒拉山系
C.
阿尔卑斯山脉
D.
乌拉尔山脉
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【简答题】He speaks English so fluently as if he __________ English in England. [A] studied [B] had studied [C] would study [D] should study
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【判断题】关闭显微镜前,需要将灯光调到最暗。
A.
正确
B.
错误
查看完整题目与答案
【单选题】—How is he getting on with his spoken English? —Great. Now he can speak English _____ his English teacher. [ ]
A.
as good as
B.
as better as
C.
as many as
D.
as well as
查看完整题目与答案
相关题目:
【单选题】He is from ____________ and he’s English.
A.
China
B.
the USA
C.
England
D.
English
查看完整题目与答案
【单选题】细胞核重复有丝分裂,最后细胞质再分裂,经过分裂,一个个体同时产生多个个体,原生动物的这种生殖方式为()。
A.
二分裂
B.
出芽生殖
C.
复分裂
D.
孢子生殖
查看完整题目与答案
【单选题】—How is he getting on with his spoken English? —Great. Now he can speak English ______ his English teacher. [ ]
A.
as better as
B.
as well as
C.
as good as
D.
as many as
查看完整题目与答案
【单选题】世界上最大的山系是( )
A.
阿尔卑斯山系
B.
喜马拉雅山系
C.
阿巴拉契亚山系
D.
科迪勒拉山系
查看完整题目与答案
【多选题】工程制图中,正投影表现的性质:
A.
集聚性。
B.
实形性。
C.
类似性。
D.
上述三种都存在,要满足不同的条件。
查看完整题目与答案
【单选题】子程序结束指令为( )
A.
M30
B.
M02
C.
M99
D.
M98
查看完整题目与答案
【单选题】世界上最大的山系是 ( )
A.
喜玛拉雅山脉
B.
科迪勒拉山系
C.
阿尔卑斯山脉
D.
乌拉尔山脉
查看完整题目与答案
【简答题】He speaks English so fluently as if he __________ English in England. [A] studied [B] had studied [C] would study [D] should study
查看完整题目与答案
【判断题】关闭显微镜前,需要将灯光调到最暗。
A.
正确
B.
错误
查看完整题目与答案
【单选题】—How is he getting on with his spoken English? —Great. Now he can speak English _____ his English teacher. [ ]
A.
as good as
B.
as better as
C.
as many as
D.
as well as
查看完整题目与答案