无限花序的类型有()
A. 穗状花序
B. 肉穗花序
C. 伞形花序
D. 轮伞花序
E. 伞房花序
依墙围一个面积为128平方米的矩形,为使用材最省,靠墙一边的边长为()米.
A. 9
B. 16
C. 8
D. 14
Paraphrase the following sentences, try to use as many strategies as possible① Used synonyms② Changed parts of speech③ Changed voice④Changed the sentence structure⑤ Cited source
(2018考研题)UDP协议实现分用(demultiplexing)时所依据的头部字段是( )。
A. 源端口号
B. 目的端口
C. 长度
D. 校验和