看图补全对话。1. A:Whatdidhedolastweekend? B: _ 发布时间:2017-05-05 18:04 │ 来源:www.tikuol.com 题型:补全对话,情景问答 问题: 看图补全对话。1. A: What did he do last weekend? B: ___________________________.2. A: What are they going to do? B: ___________________________.3. A: What's the matter, Helen? B: ___________________________.4. A: What did she do yesterday evening? B: ___________________________.
题型:补全对话,情景问答 赞助商给致远网(dinyuan.cn)发信息,说其同意签订合同。随后该赞助商反悔,不承认发过此信息。为了预防这种情况发生,应采用()技术。A、访问控制B、数据加密C、防火墙D、数字签名 查看答案