小狗每到一个新的环境都会先撒一泡尿,这一行为属于动物的( )。
A.通讯
B.反射
C.学习行为
D.社会行为
答案:A
小狗撒尿是为了告诉同类,这块领域属于自己的了,这属于动物的通讯。
根据句意及首字母(汉语)提示,补全单词。
1. We should use these bottles for r__ __.
2. All these houses were b___ _ with some used things.
3. P____ the door first when you come into my office. Don't push it.
4. Our teaching building has a special r__ __. It looks very, beautiful.
5. My brother has a____ (模型)of Shen Zhou V space ship.
[问题3] 根据本项目中任务的时间性能参数,请用200字以内文字(也可用图示)描述任务的被调度关系,并分析系统是否可调度(暂不考虑操作系统的时间开销)。