普通螺纹的螺纹角是()度。A.50; B.55; C.60; D.65。 发布时间:2020-01-01 11:54 │ 来源:www.tikuol.com 题型:单项选择题 问题: 普通螺纹的螺纹角是()度。A.50;B.55;C.60;D.65。
题型:单项选择题 John didn’t feel well yesterday; otherwise he ______ to see his friend off at the airport.A.cameB.would comeC.would have comeD.should be coming 查看答案