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【单选题】
以下关于窗体的叙述中错误的是(  )。
A.
窗体的Name属性用于标识一个窗体
B.
运行,改变窗体大小,能够触发窗体的Resize事件
C.
窗体的Enabled属性为False时,不能响应单击窗体的事件
D.
程序运行期间,可以改变Name属性值
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举一反三
【单选题】三相桥式全控整流电路在负载上的波形是截取变压器二次侧( )电压波形
A.
B.
线
【单选题】单相桥式整流电容滤波电路中,当一只二极管开路,输出电压将( )。
A.
略有上升
B.
下降一半
C.
上升一半
D.
明显下降,不足一半
【判断题】受控电源与独立电源同为二端元件。
A.
正确
B.
错误
【单选题】Which of the following is NOT true according to the passage?
A.
Some people regret their choices of love partners.
B.
In some partnership or relationship, he or she tries to control the other.
C.
Through psychological adjustment and therapy, one will feel satisfied with love.
D.
Partnership is a school from which it is not easy for us to graduate.
【简答题】下列感染疾病的病原体中,抗菌药物治疗的适应证主要针对的是 抗菌药物的合理应用原则是严格掌握适应证,治疗方案应综合患者病情.病原菌及抗菌药物特点。
【简答题】插电式混合动力汽车与一般混合动力汽车有哪些差异?
【单选题】Which of the following is NOT true according to the passage?
A.
Some people regret their choices of love partners.
B.
In some partnership or relationship, be or she tries to control the other
C.
Through psychological adjustment and therapy, one will feel satisfied with love.
D.
Partnership is a school from which it is not easy for us to graduate.
【多选题】混合动力汽车有()
A.
油电混合动力汽车
B.
气电混合动力汽车
C.
油气混合动力汽车
【简答题】任务型阅读。 Should kids do chores? People find that children as young as 18 months can help with chores When parents say to those children, 'Just look at the paper,' they will pick it up. Some parents thin...
【单选题】单相桥式整流电容滤波电路中,若整流桥中一只二极管极性接反,则:
A.
电源被短路
B.
负载得到脉动全波电压
C.
电路相当于单相半波整流电路
D.
输出电压等于
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