检修闸门和事故闸门都只能在静水中关闭和开启。() 发布时间:2019-09-29 19:43 │ 来源:www.tikuol.com 题型:判断题 问题: 检修闸门和事故闸门都只能在静水中关闭和开启。()
题型:判断题 While watching television,______.A.the doorbell rangB.the doorbell ringsC.we heard the doorbell ringsD.we heard the doorbell ring 查看答案