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【判断题】
蓟马的口器为刺吸式口器。 ( )
A.
正确
B.
错误
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举一反三
【单选题】下列关于蛋白质结构的描述,哪一种说法是错误的?
A.
都有一级结构
B.
都有二级结构
C.
都有三级结构
D.
都有四级结构
E.
二级及二级以上的结构统称空间结构
【单选题】下列不属于望苔质的是
A.
厚苔
B.
滑苔
C.
腻苔
D.
白苔
E.
剥苔
【单选题】关于跨膜信号转导的两种主要方式,下列哪种说法是错误的?
A.
一些第二信使类物质可以调节某些通道蛋白质的功能
B.
被某种受体激活了的G蛋白可直接作用于膜上的通道结构
C.
一种外来化学信号分子只能作用于一种跨膜信号转导系统
D.
腺苷酸环化酶是一种重要的膜的效应器酶
【单选题】is known to all that the Amber Room belongs to the Russians.
A.
As
B.
Which
C.
It
D.
What
【单选题】关于转换开关叙述不正确的是( )。
A.
组合开关结构较为紧凑
B.
组合开关常用于机床控制线路中
C.
倒顺开关多用于大容量电机控制线路中
D.
倒顺开关手柄只能在90°范围内旋转
【多选题】下列哪些属于望苔质的内容
A.
厚薄苔
B.
润燥苔
C.
腐腻苔
D.
剥脱苔
E.
灰黑苔
【单选题】Which of the following awards belongs to the television industry?
A.
the Academy Award
B.
the Emmy Award
C.
the Tony Award
D.
the Grammy Award
【单选题】Which one of the following conflicts belongs to the conflict with society ?
A.
The conflict between the coach and team members.
B.
Someone's losing his way in the forest.
C.
Some criminals' complaint against the world.
D.
Someone's not being sure whether to go to college or not.
【单选题】Which of the following belongs to the criticisms of Turner's thoughts?
A.
Frontier played a less significant role than Turner advocated.
B.
National character had little to do with frontier.
C.
Turner's thoughts made no sense.
D.
Class divisions were the driving forces in the frontier.
【单选题】关于转换开关叙述不正确的是( )。
A.
组合开关结构较为紧凑
B.
组合开关常用于机床控制线路中
C.
倒顺开关多用于大容量电机控制线路中
D.
倒顺开关手柄只能在90度范围内旋转
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