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【单选题】
已知一正弦交流电流I=10A作用于感抗为10Ω的电感，则电感的无功功率为( )Var。
A.
100
B.
1000
C.
1
D.
10
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【判断题】线性编码是指具有均匀量化特性的编码,即根据均匀量化间隔的划分直接对样值编码。 ( )
A.
正确
B.
错误
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【单选题】男性，32岁，今日中午突然呕血150 ml，继而排黑便2次，共约400 ml。查体：剑突下轻压痛，肝脾未触及。上消化道出血的原因可能为
A.
胃癌
B.
消化性溃疡
C.
应激性溃疡
D.
慢性胃炎
E.
食道静脉曲张破裂
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【单选题】After discussion, we all think it’s an idea that’s worth _____.A．consideringB．to considerC．to be
A.
19. After discussion, we all think it’s an idea that’s worth _____. A．considering
B.
to consider
C.
to be considered
D.
of considering
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【单选题】在串联型稳压电路中,取样电路电阻器的温度系数越小,其输出电压受温度的影响
A.
越小
B.
越大
C.
成正比增长
D.
与温度系数无关
查看完整题目与答案
【单选题】We confirm _______ your order No. 7891 dated May 10, 1990.
A.
to have received
B.
having received
C.
receiving
D.
to receive
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【单选题】在虚拟化技术中,属于软件虚拟化的是( )。
A.
计算虚拟化
B.
存储虚拟化
C.
网络虚拟化
D.
桌面虚拟化
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【单选题】As soon as we got to the airport, we found that the plane_____.
A.
had already taken off
B.
already took off
C.
was already taking off
D.
was already taken off
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【判断题】可以通过调整、改变、规范人的行为来中止环境的来化,推动幸福生活的建设。
A.
正确
B.
错误
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【简答题】– We ordered 20boxes of your products, but we have only got 19. – .A. You do not have to B. It doesnot matter C. We will send another tomorrow D. Would you mind calling back later?
查看完整题目与答案
【单选题】–We ordered 20 boxes of your products, but we have only got 19.
A.
You do not have to
B.
It does not matter
C.
. We will send another tomorrow
D.
Would you mind calling back later?
查看完整题目与答案
相关题目：
【判断题】线性编码是指具有均匀量化特性的编码,即根据均匀量化间隔的划分直接对样值编码。 ( )
A.
正确
B.
错误
查看完整题目与答案
【单选题】男性，32岁，今日中午突然呕血150 ml，继而排黑便2次，共约400 ml。查体：剑突下轻压痛，肝脾未触及。上消化道出血的原因可能为
A.
胃癌
B.
消化性溃疡
C.
应激性溃疡
D.
慢性胃炎
E.
食道静脉曲张破裂
查看完整题目与答案
【单选题】After discussion, we all think it’s an idea that’s worth _____.A．consideringB．to considerC．to be
A.
19. After discussion, we all think it’s an idea that’s worth _____. A．considering
B.
to consider
C.
to be considered
D.
of considering
查看完整题目与答案
【单选题】在串联型稳压电路中,取样电路电阻器的温度系数越小,其输出电压受温度的影响
A.
越小
B.
越大
C.
成正比增长
D.
与温度系数无关
查看完整题目与答案
【单选题】We confirm _______ your order No. 7891 dated May 10, 1990.
A.
to have received
B.
having received
C.
receiving
D.
to receive
查看完整题目与答案
【单选题】在虚拟化技术中,属于软件虚拟化的是( )。
A.
计算虚拟化
B.
存储虚拟化
C.
网络虚拟化
D.
桌面虚拟化
查看完整题目与答案
【单选题】As soon as we got to the airport, we found that the plane_____.
A.
had already taken off
B.
already took off
C.
was already taking off
D.
was already taken off
查看完整题目与答案
【判断题】可以通过调整、改变、规范人的行为来中止环境的来化,推动幸福生活的建设。
A.
正确
B.
错误
查看完整题目与答案
【简答题】– We ordered 20boxes of your products, but we have only got 19. – .A. You do not have to B. It doesnot matter C. We will send another tomorrow D. Would you mind calling back later?
查看完整题目与答案
【单选题】–We ordered 20 boxes of your products, but we have only got 19.
A.
You do not have to
B.
It does not matter
C.
. We will send another tomorrow
D.
Would you mind calling back later?
查看完整题目与答案