题目内容

Free baggage 1 includes checked baggage and2 baggage. Passengers holding an adult3 ticket are entitled to a free baggage allowance of 40kg for4 class, 30kg for business class and 20kg for5 class. No free baggage allowance is granted to6.The carrier will be liable to7 for the loss of or damage to the checked baggage due to the carrier's8. The norm of compensation shall not9 RMB 50 Yuan per kg. If the10 of the baggage is less than RMB 50 Yuan per kg, the amount of compensation shall be paid according to its actual values of loss.

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棘轮机构的转角大小_____调整。

A. 不可以
B. 可以

为保证棘轮在工作中的静止可靠和防止棘轮反转,棘轮机构应当装有______。

A. 主动棘爪
B. 止回棘爪
C. 机架

拨盘转一周,槽轮作一次反向间歇转动的槽轮机构是什么槽轮机构?

A. 单圆销外啮合
B. 双圆销外啮合
C. 单圆销内啮合

某单圆销六槽外啮合槽轮机构,若主动件曲柄(拨盘)转一周,则槽轮转几周?

A. 1
B. 1/4
C. 1/6
D. 1/8

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