皮皮学，免费搜题
登录
搜题
【单选题】
利用光敏电阻制作的光传感器,记录了传送带上工件的输送情况,如图甲所示为某工厂成品包装车间的光传感记录器,光传感器 B 能接收到发光元件 A 发出的光,每当工件挡住 A 发出的光时,光传感器输出一个电信号,并在屏幕上显示出电信号与时间的关系,如图乙所示,若传送带始终匀速运动,每两个工件间的距离为 0.2 m ,则下述说法正确的是( )
A.
传送带运动的速度是 0.1 m/s
B.
传送带运动的速度是 1m/s
C.
该传送带每小时输送 3600 个工件
D.
该传送带每小时输送 7200 个工件
拍照语音搜题，微信中搜索"皮皮学"使用
参考答案：
参考解析：
知识点：
.
..
皮皮学刷刷变学霸
举一反三
【判断题】联言陈述的两个子陈述都必须为真。
A.
正确
B.
错误
查看完整题目与答案
【简答题】A. There are so many plants that it is hard to see the sky. B. Many plants are sick because of lack of sunlight. C. The plants are more spectacular than she has ever dreamed. D. The plants struggle ha...
查看完整题目与答案
【单选题】It is to see the blacks now in charge after their long struggle.
A.
exhilarating
B.
benign
C.
restful
D.
remiss
查看完整题目与答案
【判断题】企业可以将不同类型的经济业务合并在一起,编制多借多货的会计分录。
A.
正确
B.
错误
查看完整题目与答案
【单选题】It is important that we _______with all that _______ in the struggle.
A.
should unite, be united
B.
would unite, can be united
C.
unite , can be united
D.
should unite, could unite
查看完整题目与答案
【单选题】在制定具体审计计划时,注册会计师应当考虑的内容是( )。
A.
计划实施的风险评估程序的性质、时间安排和范围
B.
计划与管理层沟通和治理层沟通的日期
C.
计划向高风险领域分派的项目组成员
D.
计划召开项目组会议的时间
查看完整题目与答案
【单选题】Impressive ____, it fades next   _____ the story of Armstrong's struggle against disease. [     ]
A.
as is the record; by
B.
as is the record; on
C.
as the record is; for
D.
as the record is; to
查看完整题目与答案
【单选题】How many days does Santiago struggle with the marlin before he is able to kill it?
A.
Five
B.
Three
C.
Eight
D.
Two
查看完整题目与答案
【单选题】The struggle of the generation is one of the obvious constants of human affairs; therefore, it may be presumptuous to suggest that the rivalry between young and old in western society during the curre...
A.
perennially
B.
disturbingly
C.
uniquely
D.
archetypal
E.
cautiously
查看完整题目与答案
【单选题】Rita did well in her English course, but the class was a real struggle for her at first. It is a struggle to work and go to school at the same time. Struggle means ___________.
A.
boring time
B.
easy time
C.
difficult time
查看完整题目与答案
相关题目：
【判断题】联言陈述的两个子陈述都必须为真。
A.
正确
B.
错误
查看完整题目与答案
【简答题】A. There are so many plants that it is hard to see the sky. B. Many plants are sick because of lack of sunlight. C. The plants are more spectacular than she has ever dreamed. D. The plants struggle ha...
查看完整题目与答案
【单选题】It is to see the blacks now in charge after their long struggle.
A.
exhilarating
B.
benign
C.
restful
D.
remiss
查看完整题目与答案
【判断题】企业可以将不同类型的经济业务合并在一起,编制多借多货的会计分录。
A.
正确
B.
错误
查看完整题目与答案
【单选题】It is important that we _______with all that _______ in the struggle.
A.
should unite, be united
B.
would unite, can be united
C.
unite , can be united
D.
should unite, could unite
查看完整题目与答案
【单选题】在制定具体审计计划时,注册会计师应当考虑的内容是( )。
A.
计划实施的风险评估程序的性质、时间安排和范围
B.
计划与管理层沟通和治理层沟通的日期
C.
计划向高风险领域分派的项目组成员
D.
计划召开项目组会议的时间
查看完整题目与答案
【单选题】Impressive ____, it fades next   _____ the story of Armstrong's struggle against disease. [     ]
A.
as is the record; by
B.
as is the record; on
C.
as the record is; for
D.
as the record is; to
查看完整题目与答案
【单选题】How many days does Santiago struggle with the marlin before he is able to kill it?
A.
Five
B.
Three
C.
Eight
D.
Two
查看完整题目与答案
【单选题】The struggle of the generation is one of the obvious constants of human affairs; therefore, it may be presumptuous to suggest that the rivalry between young and old in western society during the curre...
A.
perennially
B.
disturbingly
C.
uniquely
D.
archetypal
E.
cautiously
查看完整题目与答案
【单选题】Rita did well in her English course, but the class was a real struggle for her at first. It is a struggle to work and go to school at the same time. Struggle means ___________.
A.
boring time
B.
easy time
C.
difficult time
查看完整题目与答案