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问题 单项选择题

解决刨齿机摇台自上向下抖动现象，用调节螺钉调整扇形蜗轮副齿侧间隙，最小为（）。

A、0.01～0.015mm

B、0.1～0.15mm

C、0.03～0.05mm

D、0.001～0.005mm

答案

参考答案：A

单项选择题

(56) is a one-way function that takes an arbitrarily long piece of plaintext and from it computes a fixed-length bit string.
(57) is a protocol that most USENET machines now use it to allow news articles to propagate from one machine to another over a reliable connection.
(58) is an approach preferred by cable TV providers. In this solution the fiber terminates at an opto-electrical converter and the final segment is a shared coaxial cable.
(59) is a device used to connect two separate network that use different communication protocol.
(60) is a digital-to-digital polar encoding method in which the signal level is always either positive or negative.

A．RTP

B．RTTP

C．FTP

D．NNTP
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单项选择题

邪热亢盛与糟粕相搏，热实互结时的脉象是（）

A.伏脉

B.牢脉

C.迟脉

D.缓脉

E.沉脉
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