YJ29滤嘴接装机,调整滤嘴烟支切刀前磨刀砂轮时,逆时针旋转调节螺钉,可增大磨刀砂轮对切刀的磨削量。
参考答案:错
We ________ the job ________ five parts, and each man did one part.[ ]
A.divided; into
B.separated; into
C.divided; from
D.separated; from
简述青少年智力的发展特点。