()因素不利于维护铁口。 A.放好上渣 B.改进炮泥质量 C.设置沉铁流 D.闷炮 发布时间:2018-02-10 02:30 │ 来源:www.tikuol.com 题型:单项选择题 问题: ()因素不利于维护铁口。A.放好上渣B.改进炮泥质量C.设置沉铁流D.闷炮
题型:单项选择题 Apart from his monthly salary as a sales manager, he also gets a travel _______ that covers hotel bills. [ ]A. insuranceB. circumstanceC. allowanceD. competence 查看答案