在二进制系统中,码元同步也叫位同步,因为一个码元就是代表一个二进制位
A. 对
B. 错
This letter is for a / an ____.
A. best friend
B. classmate in college
C. online friend
D. family member
When did the auther meet his / her friend?
A. 16 years ago.
B. 17 years ago.
C. 18 years ago.
D. 19 years ago.
医院感染的主要因素不包括
A. 疾病谱的改变
B. 易感人群增多
C. 各种侵入性诊疗手段增多
D. 医院管理机制不完善
E. 大量新型抗生素开发和使用