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【单选题】
C6150型车床快速移动电动机通过( )控制正反转。
A.
三位置自动复位开关
B.
两个交流接触器
C.
两个低压断路器
D.
三个热继电器
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【单选题】不具耐水性的涂料类墙面的清洁保洁作业程序一般为下面四点,那么,耐水性的涂料类墙面的清洁保洁作业程序与其相比较主要是第()点不同。
A.
用掸子掸掉墙面的灰尘和蜘蛛网,应特别注意对边缘和角落位置的处理
B.
用干毛巾擦墙面上的污渍,若擦不掉则可试用橡皮、细砂纸轻轻擦掉,要注意掌握技巧,否则会留下痕迹
C.
墙面上沾有泥浆、痰迹等凸起的厚污垢,则可尝试用铲刀轻轻铲掉
D.
清洁好因清洁墙面而污染的地面
查看完整题目与答案
【单选题】以下哪一项不是无线信道特有的特征?
A.
传播电磁波
B.
多径效应
C.
隐藏站
D.
能量损耗和传播距离的平方成正比
查看完整题目与答案
【单选题】The part of the sentence: his ability to provide competent daytime services 'was compromised' may mean______.
A.
his being unable to provide competent daytime services
B.
his ability to provide competent daytime services was discredited
C.
his qualification as a doctor was suspected
D.
his NHS practice is no more than a cheat to the patients
查看完整题目与答案
【判断题】三线精神在三线建设的过程中逐渐产生、形成,并在三线建设调整后得到延拓,是推动三线建设向前发展的精神动力,并在西部大开发中与时俱进。
A.
正确
B.
错误
查看完整题目与答案
【单选题】在单相桥式整流电路中,为要在负载电阻R.上获得UO(AV)≈9V的输出电压平均值,应设计变压器副边电压有效值U2约为( )。
A.
10V
B.
4.5V
C.
7.5V
D.
9.5V
查看完整题目与答案
【单选题】The daytime of the summer is longer than _____ of the winter.
A.
it
B.
this
C.
that
D.
daytime
查看完整题目与答案
【单选题】可设置的自定义键的个数( )
A.
10
B.
12
C.
24
D.
36
查看完整题目与答案
【单选题】Daytime running lights operate ________.
A.
Front parking lights
B.
Separate DRL lamps
C.
High beam headlights wired in series
D.
Any of the above
查看完整题目与答案
【单选题】Why did the bird never sing in the daytime? ( )
A.
Because she could only sing in the evening.
B.
Because there was nobody to listen to her.
C.
Because she was caught while singing in the daytime.
查看完整题目与答案
【单选题】2016 年 1 月 6 日朝鲜宣布进行了第四次核试验,朝鲜称是
A.
氢弹试验
B.
原子弹试验
C.
核试验
D.
导弹试验
查看完整题目与答案
相关题目:
【单选题】不具耐水性的涂料类墙面的清洁保洁作业程序一般为下面四点,那么,耐水性的涂料类墙面的清洁保洁作业程序与其相比较主要是第()点不同。
A.
用掸子掸掉墙面的灰尘和蜘蛛网,应特别注意对边缘和角落位置的处理
B.
用干毛巾擦墙面上的污渍,若擦不掉则可试用橡皮、细砂纸轻轻擦掉,要注意掌握技巧,否则会留下痕迹
C.
墙面上沾有泥浆、痰迹等凸起的厚污垢,则可尝试用铲刀轻轻铲掉
D.
清洁好因清洁墙面而污染的地面
查看完整题目与答案
【单选题】以下哪一项不是无线信道特有的特征?
A.
传播电磁波
B.
多径效应
C.
隐藏站
D.
能量损耗和传播距离的平方成正比
查看完整题目与答案
【单选题】The part of the sentence: his ability to provide competent daytime services 'was compromised' may mean______.
A.
his being unable to provide competent daytime services
B.
his ability to provide competent daytime services was discredited
C.
his qualification as a doctor was suspected
D.
his NHS practice is no more than a cheat to the patients
查看完整题目与答案
【判断题】三线精神在三线建设的过程中逐渐产生、形成,并在三线建设调整后得到延拓,是推动三线建设向前发展的精神动力,并在西部大开发中与时俱进。
A.
正确
B.
错误
查看完整题目与答案
【单选题】在单相桥式整流电路中,为要在负载电阻R.上获得UO(AV)≈9V的输出电压平均值,应设计变压器副边电压有效值U2约为( )。
A.
10V
B.
4.5V
C.
7.5V
D.
9.5V
查看完整题目与答案
【单选题】The daytime of the summer is longer than _____ of the winter.
A.
it
B.
this
C.
that
D.
daytime
查看完整题目与答案
【单选题】可设置的自定义键的个数( )
A.
10
B.
12
C.
24
D.
36
查看完整题目与答案
【单选题】Daytime running lights operate ________.
A.
Front parking lights
B.
Separate DRL lamps
C.
High beam headlights wired in series
D.
Any of the above
查看完整题目与答案
【单选题】Why did the bird never sing in the daytime? ( )
A.
Because she could only sing in the evening.
B.
Because there was nobody to listen to her.
C.
Because she was caught while singing in the daytime.
查看完整题目与答案
【单选题】2016 年 1 月 6 日朝鲜宣布进行了第四次核试验,朝鲜称是
A.
氢弹试验
B.
原子弹试验
C.
核试验
D.
导弹试验
查看完整题目与答案