钢丝绳绳芯中含有油脂，当绳受力时起润滑钢丝的作用。（）
正确
暂无解析
Hesetupinbusiness（）hisownandwasverysuccessful.
Tom____ofhiswifehowshehadmetherfriend.
Thebackgardenofourhousecontainsalawn，____verypleasanttositoninsummer.
Idon’tunderstand____believehim.
I_______thatthere_______aneveningpartyonSaturdayevening.
