5.85×113-2.5÷416+314,
=5.85×43-2.5×125+314,
=7.8-0.1+3.25,
=10.95.
---What are you going to do _____ Sunday morning?
--- Nothing much.
A./
B.on
C.in
D.at
拧高强度螺栓时,因初拧预拉力值要求比较稳定,以使用()扳手为好。
A、示功
B、风动
C、定扭