油箱内设有溢流阀,其压力在出厂前已调整至()MPa,当负载过大时,溢流阀卸荷,从而保 发布时间:2019-08-25 17:57 │ 来源:www.tikuol.com 题型:单项选择题 问题: 油箱内设有溢流阀,其压力在出厂前已调整至()MPa,当负载过大时,溢流阀卸荷,从而保证机具使用安全。A.20B.30C.52D.70
题型:单项选择题 With the advanced technology, our factory produces ________cars as we did last year.A.as twice many B.many as twiceC.twice as many D.as twice as many 查看答案