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【单选题】
轴向直廓蜗杆又称ZA蜗杆，这种蜗杆在轴向平面内齿廓为直线，而在垂直轴线的于轴线的剖面内齿形是阿基米德螺线，所以又称（）蜗杆。A.
渐开线
B.
阿基米德
C.
双曲线
D.
抛物线
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反馈参考答案：
举一反三
【单选题】第四代计算机采用的逻辑元件是
A.
Telnet和FTP
B.
Modem和ISDN
C.
IE和Netscape
D.
Outlook Express和Foxmail
E.
Internet和Intranet
【单选题】There a birthday party this Sunday.
A.
will be
B.
shall be
C.
shall going to be
D.
will going to be
【单选题】There a birthday party this Sunday.
A.
shall be
B.
will be
C.
shall going to be
D.
will going to be
【单选题】— I'd love to go to the party with you tonight. — Oh, I'm sorry, there be a party because of the coming exam. [ ]
A.
mustn't
B.
needn't
C.
can't
D.
oughtn't
【简答题】第四代计算机采用的逻辑元件为 。
【单选题】There a Christmas party in Sunshine Secondary School next Friday evening.
A.
is going to
B.
will have
C.
is going to have
D.
will be
【单选题】There a birthday party thi night.
A.
shall be
B.
will be
C.
shall going to be
D.
will going to be
【简答题】第四代计算机采用的逻辑元件是
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