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【判断题】
电流 i =3sinωt A的相量表示形式为 I =3AA.
正确
B.
错误
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举一反三
【单选题】55 对三视图中的主视图而言,下列说法错误的是________。
A.
尺寸上反映了物体的长度和高度
B.
方位上反映了物体的左右和前后
C.
通常反映了物体的主要特征
D.
主视图是物体的正面投影
【单选题】Larry had stolen some money, but the police had caught him and he had been put in prison. Now his trial was about to begin, and he felt sure that he would be found guilty and sent to prison for a long...
A.
A person who works in a court.
B.
A policeman.
C.
A judge.
D.
A group of people who decide if someone on trial is guilty or not guilty.
【单选题】George had stolen some money, but the police had caught him and he had been put in prison. Now his trial was about to begin, and he felt sure that he would be found guilty and sent to prison for a lon...
A.
prove him innocent
B.
him turns over a new leaf
C.
lighten his punishment
D.
him escapes from prison
【简答题】When he realized the police had seen him, theman______the exit as quickly as possible. A. madeup B. made for C. madeout D. made off
【简答题】除了定时排风,还有哪些因素可以控制排风系统的启动?
【单选题】George had stolen some money. The police had caught him and he had been put in prison. Now his trial was about to begin and he felt sure that he would be found guilty and sent to prison for a long tim...
A.
A person who works in a court.
B.
A police officer.
C.
A judge.
D.
A group of people who decide if someone on trial is guilty or not.
【简答题】品牌主要能产生四种效应,分别是扩散效应、 、 和 。
【单选题】题: 对三视图中的俯视图而言,下列说法错误的是________。
A.
尺寸上反映了物体的长度和宽度
B.
方位上反映了物体的左右和前后
C.
反映了物体的主要特征
D.
俯视图是物体的水平投影
【单选题】When he realized the police had spotted him, the man the exit as quickly as possible.
A.
made off
B.
made for
C.
made out
D.
made up
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