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【单选题】
如某晶闸管的正向阻断重复峰值电压为 745V, 反向重复峰值电压为 825V, 则该晶闸管的额定电压应为 ( )A.
700
B.
750
C.
800
D.
850
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举一反三
【简答题】训练要求: 通过分析笔痕特征,判断书写笔画运行方向:逆时针或顺时针。图1判断“3”字;图2判断“8”字;图3判断“孙、松”两字,图3要求用红色标出方向。
【单选题】下列哪项内容不是宣传教育工作？（）
A.
将打击传销的宣传教育作为辖区社会管理综合治理考评指标之一
B.
打击传销的重点地区要组织开展更加多样的宣传教育活动
C.
将参与传销人员的信息录入当地信息系统
D.
创建“无传销社区”、开展“防止传销进校园”活动
【单选题】听力原文：Some young people occasionally have some good suggestions but they seldom follow them through to completion. (29)
A.
Sometimes young people come up with good ideas but they don't really understand how good these ideas are.
B.
Young people sometimes have good intention and perseverance.
C.
Young people sometimes don't know what they really want even if they are ambitious.
D.
Completing a good idea is not as easy as putting up a good idea, especially for young people.
【简答题】如图逻辑电路,逻辑函数表达式为
【简答题】There are some______(indicate)that they are generous young souls.
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