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【单选题】
国际象棋中吃子与走法不同的棋子是()。
A.
B.
C.
D.
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【单选题】在典型的 OTL 功放中负载扬声器为 SQ , 要使负载上到 1.6W 的功 率 , 则电源电压应取( )。
A.
16V
B.
8V
C.
6V
D.
4V
【简答题】本小节有哪些关键概念?
【简答题】单片机 P0 口控制 8 个共阳极发光二极管,通过串行接口读入外部 8 位开关的状态,并用 8 位发光二极管表示按键闭合状态。
【简答题】阅读理解。 People know the er of fires. It's good for a family to learn how to prepare for a fire. Here are some suggestions: Put a smoke alarm in the house. Smoke from a fire causes the alarm to go of...
【简答题】It's __ to climb the tall tree, be careful. [     ] A. er B .erous C .busy D .difficult
【判断题】等产线离原点越远,产量越大。( )
A.
正确
B.
错误
【单选题】听力原文:M: I think it's high time we turned our attention to the danger of drunk driving now. W: I can't agree with you more. You see, countless innocent people are killed by drunk drivers each year. Wha...
A.
Most people killed in traffic accidents are heavy drinkers.
B.
She does not agree with the man.
C.
Drunk drivers are not guilty.
D.
People should pay more attention to the danger of drunk driving.
【单选题】在典型的OTL功放中负载扬声器为5欧姆,要使负载上到1.6W的功率,则电源电压应取( )
A.
16V
B.
8V
C.
6V
D.
4V
【判断题】单位开立银行结算账户的名称应与其提供的申请开户的证明文件的名称全称及预留银行的印章一致,若单位的名称过长,可使用规范化简称,但必须与预留银行的印章一致,并与开户银行在银行结算账户管理协议上明确简称的约定。
A.
正确
B.
错误
【简答题】在气动圆管焊接机回路图中,元件1.6的名称及作用分别是什么?
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