线段合并操作必须(),再将用户变更到线段,而不能反向操作,避免用户在程序内部变更两次 发布时间:2019-07-04 03:30 │ 来源:www.tikuol.com 题型:填空题 问题: 线段合并操作必须(),再将用户变更到线段,而不能反向操作,避免用户在程序内部变更两次。
题型:填空题 Many youth went to the Shanghai Science and Technology Museum on Nov. 16, 2009, _____ U.S. President Barack Obama delivered a speech during his four-day state visit.A. which B. in that C. whereD. that 查看答案