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【判断题】
电压和电位都是反应电压特性能量的物理量,所以电压和电位是没区别的
A.
正确
B.
错误
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【简答题】阅读短文，选择正确答案。 Some parents are worrying that their children wouldn't like meals. In fact, most children are usually ready to eat almost anything that is offered to them. A child often likes food unless...
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【判断题】旅行,是人们出于迁徙以外的其他目的离开自己的常住地到异地作短暂停留并按原计划返回的行为
A.
正确
B.
错误
查看完整题目与答案
【简答题】Some parents are worrying that their children wouldn’t like meals. In fact, most children are usually ready to eat almost anything that is offered to them. A child often likes food unless it is badly ...
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【判断题】光纤传感器也是光电传感器的一种，它由光纤单元、放大器两部分组成。投光器和受光器均在放大器内，投光器发出的光线通过一条光纤内部从端面（光纤头）以约60°的角度扩散，照射到检测物体上；同样，反射回来的光线通过另一条光纤的内部回送到受光器。反射回来的光线量将由放大器内部的敏感元件检出，并转换为电气信号输出。
A.
正确
B.
错误
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【判断题】HXN5型机车燃油粗滤器采用免拆洗滤芯。
A.
正确
B.
错误
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【判断题】卡门旋涡式空气流量传感器是利用超声波或光电信号,通过检测旋涡频率来测量空气 流量的一种传感器。 ( )
A.
正确
B.
错误
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【单选题】Some parents home school their children for the reason that ______.
A.
they would like their children to become artists or athletes sooner
B.
the education officials don't advocate diversified educational systems
C.
the government couldn't offer sufficient teaching facilities
D.
the school education doesn't meet their individual religious needs
查看完整题目与答案
【单选题】传感器是一种检测装置，能感受到被测量的信息，并能将检测感受到的信息，按一定规律变换成为（ ）或其他所需形式的信息输出，以满足信息的传输、处理、存储、显示、记录和控制等要求。
A.
电信号
B.
光信号
C.
声信号
D.
磁电信号
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【单选题】Some children don’t like to talk with their parents,but I am _______them.I love to talk with my parents.
A.
the same as
B.
different from
C.
pleased with
D.
interested in
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【单选题】下列哪项作为特殊情况除外,室内消防竖管直径不应小于DN100( )
A.
设置DN65消火栓的多层住宅的湿式消防竖管
B.
设置DN65消火栓的多层住宅的干式消防竖管
C.
室内消火栓用水量5L/s的多层厂房的消防竖管
D.
室内消火栓用水量5L/s的多层仓库的消防竖管
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【简答题】阅读短文，选择正确答案。 Some parents are worrying that their children wouldn't like meals. In fact, most children are usually ready to eat almost anything that is offered to them. A child often likes food unless...
查看完整题目与答案
【判断题】旅行,是人们出于迁徙以外的其他目的离开自己的常住地到异地作短暂停留并按原计划返回的行为
A.
正确
B.
错误
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【简答题】Some parents are worrying that their children wouldn’t like meals. In fact, most children are usually ready to eat almost anything that is offered to them. A child often likes food unless it is badly ...
查看完整题目与答案
【判断题】光纤传感器也是光电传感器的一种，它由光纤单元、放大器两部分组成。投光器和受光器均在放大器内，投光器发出的光线通过一条光纤内部从端面（光纤头）以约60°的角度扩散，照射到检测物体上；同样，反射回来的光线通过另一条光纤的内部回送到受光器。反射回来的光线量将由放大器内部的敏感元件检出，并转换为电气信号输出。
A.
正确
B.
错误
查看完整题目与答案
【判断题】HXN5型机车燃油粗滤器采用免拆洗滤芯。
A.
正确
B.
错误
查看完整题目与答案
【判断题】卡门旋涡式空气流量传感器是利用超声波或光电信号,通过检测旋涡频率来测量空气 流量的一种传感器。 ( )
A.
正确
B.
错误
查看完整题目与答案
【单选题】Some parents home school their children for the reason that ______.
A.
they would like their children to become artists or athletes sooner
B.
the education officials don't advocate diversified educational systems
C.
the government couldn't offer sufficient teaching facilities
D.
the school education doesn't meet their individual religious needs
查看完整题目与答案
【单选题】传感器是一种检测装置，能感受到被测量的信息，并能将检测感受到的信息，按一定规律变换成为（ ）或其他所需形式的信息输出，以满足信息的传输、处理、存储、显示、记录和控制等要求。
A.
电信号
B.
光信号
C.
声信号
D.
磁电信号
查看完整题目与答案
【单选题】Some children don’t like to talk with their parents,but I am _______them.I love to talk with my parents.
A.
the same as
B.
different from
C.
pleased with
D.
interested in
查看完整题目与答案
【单选题】下列哪项作为特殊情况除外,室内消防竖管直径不应小于DN100( )
A.
设置DN65消火栓的多层住宅的湿式消防竖管
B.
设置DN65消火栓的多层住宅的干式消防竖管
C.
室内消火栓用水量5L/s的多层厂房的消防竖管
D.
室内消火栓用水量5L/s的多层仓库的消防竖管
查看完整题目与答案