CSMA/CD的工作流程为：先听后发、边听边发、冲突停止、延迟______。
参考答案：重发
解析：考察CSMA/CD的工作过程。
归纳和推理使科学家们可能对世界作出正确的描述，这种可能正确的描述被称为假说
— I went to see you yesterday evening. But you weren't in. Where were you then?
— I a walk by the lake with my husband. [ ]
A. was having
B. am having
C. have had
D. have
