焊接铝板时,焊枪()。A、只能推,不能拉 B、只能拉,不能推 C、既能推又能拉 D、电流大 发布时间:2018-03-19 04:21 │ 来源:www.tikuol.com 题型:单项选择题 问题: 焊接铝板时,焊枪()。A、只能推,不能拉B、只能拉,不能推C、既能推又能拉D、电流大小无要求
题型:单项选择题 By the time my parents reached home yesterday, I _____ the dinner already.A.had cookedB.cookedC.have cookedD.was cooked 查看答案
题型:单项选择题 ______ fathers are both teachers.A.Ann's and JaneB.Ann's and Jane'sC.Ann and Jane'sD.Ann and Jane 查看答案