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【简答题】
与不同身份的人讲话,你会:( )
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皮皮学刷刷变学霸
举一反三
【单选题】直接调频与间接调频相比,以下说法正确的是 ( )
A.
．直接调频频偏较大，中心频率稳定
B.
．直接调频频偏较大，中心频率不稳定
C.
．间接调频频偏较大，中心频率不稳定
D.
．间接调频频偏较大，中心频率稳定
【单选题】Man: What's the noise upstairs? Woman: It seems they're wrestling. Man:______.
A.
I can't stand it any more.
B.
I don't like it.
C.
What a shame.
D.
It's a storm in a tea cup.
【简答题】阅读理解。 St. Martin's Day is a holiday in Holland. St. Martin was a man who did kind things for many people in need. One cold winter day he was walking home. He wore a coat to keep warm and had a small p...
【单选题】若将一个 TTL 异或 门(设输入端为 A 、 B )当做反相器使用,则( ) 。
A.
A 或 B 中有一个接低电平 0
B.
A 或 B 中有一个接高电平 1
C.
A 和 B 并联使用
D.
不能实现
【单选题】设TTL异或门的输入端为A、B，若将其作反相器使用，则A、B端应 连接。
A.
A或B端有1个接入高电平
B.
A、B端并联在一起使用
C.
不能实现
D.
A或B端有1个接入低电平
【简答题】阅读理解。 St. Martin's Day is a holiday in Holland. St. Martin was a man who did kind things for many people in need. One cold winter day he was walking home. He wore a coat to keep warm and had a small p...
【单选题】What does the man know about St.Mary’s church?
A.
they have a beautiful organ
B.
there will be a recital in the church
C.
the church is a beautiful building
【单选题】设TTL异或门的输入端为A、B,若将其作反相器使用,则A、B端应 连接。
A.
A、B端并联在一起使用
B.
A或B端有1个接入低电平
C.
A或B端有1个接入高电平
D.
不能实现
【单选题】— — It’s May 1st.
A.
What day is it?
B.
What’s the date?
C.
What’s the time?
D.
What time is it?
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