题目内容

织制平纹织物的综框联动开口机构中的凸轮每一回转，形成次梭口。

A. 零
B. 一
C. 二
D. 三

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凸轮靠传动踏综杆。

织制平纹织物时，综框联动开口机构的凸轮1和凸轮2分别以度相位差固定安装在织机的上。

Choose the best answer to fill in the blanks.It is uncertain ___side effect the medicine will bring about ,although about two thousand patients have taken it.

A. that
B. what
C. how
D. whether

___leaves the room last ought to turn off the light.

Anyone
B. The person
C. Whoever
D. Who