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【单选题】
输入设备是向计算机输入数据和信息的设备。下列关于输入设备的描述中,错误的是________。 ( )
A.
条形码阅读器是用于读取条形码所包含的信息的一种设备
B.
触摸屏将输入和输出集中到一个设备上,简化了交互过程
C.
鼠标按照工作原理可分为两键鼠标和多键鼠标
D.
键盘上的功能键区各按键的作用是由软件定义的
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参考答案:
举一反三
【简答题】If you are late for the appointment, you might ________ the interviewer and lose your chance of being accepted. A) irrigate B) intrigue C) irritate D) intimidate
【判断题】达尔文是最早使用“生物学”一词的科学家之一。( )
A.
正确
B.
错误
【单选题】能使氧离曲线右移的因素是( )
A.
二氧化碳分压升高
B.
温度降低
C.
pH升高
D.
2,3-DPG降低
【单选题】What should you do if you are late for an appointment with your friend?
A.
Try your best to get to the meeting place as soon as possible.
B.
Call your friend to explain why you are late and apologize.
C.
Call and just tell your friend to reschedule your appointment.
【单选题】If you are late for class,the teacher angry. [     ]
A.
is
B.
was
C.
will
D.
will be
【单选题】If you are late for the appointment, you might __________ the interviewer and lose your chance of being accepted.
A.
intimidate
B.
intrigue
C.
iritate
D.
irrigate
【单选题】财政产生的物质条件是( )。
A.
剩余产品的出现
B.
封建地主的出现
C.
国家的出现
D.
法律的出现
【判断题】达尔文是最早使用“生物学”一词的科学家之一。( )
A.
正确
B.
错误
【单选题】What should you do if you are late for an appointment with your friend?
A.
Try your best to get to the meeting place as soon as possible.
B.
Call your friend to inform him that you will be late.
C.
Call your friend to explain why you are late and apologize.
D.
Tell your friend to reschedule your appointment.
【判断题】常用的折光率系指光线在空气中进行的速度与在供试品中进行速度的比值。
A.
正确
B.
错误
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