A. 减少主机的通信处理负荷 B. 结合来自两条或更多条线路的传输 C. 执行串行/并行转换 D. 执行数模转换
A. 对 B. 错
A. always ends in an exclamation point B. has two or more independent clauses and one or more dependent clauses. C. starts with a conjunction
A. True B. False