安全生产许可证的有效期为()年。 A.1 B.2 C.3 D.5 发布时间:2019-03-03 13:41 │ 来源:www.tikuol.com 题型:单项选择题 问题: 安全生产许可证的有效期为()年。A.1 B.2 C.3 D.5
题型:单项选择题 As a result of the earthquake, two-thirds of the buildings in the area _____. [ ]A. need repairing B. needs repairing C. needs to be repairedD. need to repair 查看答案