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【单选题】
在铰链四杆机构ABCD中,已知三杆长度为l AB =80 mm , l BC =150 mm , l CD =120 mm , l AD =100mm,AD杆为机架, 则该机构为( )
A.
曲柄摇杆机构
B.
双曲柄机构
C.
双摇杆机构
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参考答案:
举一反三
【单选题】He to church (教堂) on Sundays.
A.
go
B.
goes
C.
is giong
D.
gos
【单选题】《史记》中的“八书”都属于?
A.
书法史
B.
制度史
C.
图书史
D.
思想史
【单选题】票据的下列记载事项中,可以更改的有( )。
A.
收款人名称
B.
出票日期
C.
金额
D.
付款日期
【简答题】Welcome to your favorite show-'Music Land' ! This month we are going to have some special shows on Bach, the Father of Music. Johann Sebastian Bach was born in Germany(德国)in 1685. During his life, Bac...
【多选题】票据的下列记载事项中,可以更改的有( )。
A.
收款人名称
B.
付款人名称
C.
金额
D.
付款日期
【简答题】阅读理解。 Welcome to your favorite show-'Music Land '! This month we are going to have some special shows on Bach, the Father of Music. Johann Sebastian Bach was born in Germany (德国) in 1685, During his l...
【单选题】票据的下列记载事项中,可以更改的有______。
A.
收款人名称
B.
付款人名称
C.
金额
D.
用途
【多选题】票据的下列记载事项中,可以更改的有( )。
A.
收款人名称
B.
付款人名称
C.
票据金额
D.
付款日期
【简答题】Jay, an American, wanted to write a book about famous churches (教堂)around the world. Firstly, Jay bought a plane ticket and took a trip to Columbus, Ohio, USA, thinking that he would start by working ...
【单选题】《史记》中的“八书”都属于?
A.
思想史
B.
制度史
C.
书法史
D.
图书史
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