在下面给出的协议中，（）属于TCP/IP的应用层协议。
A.TCP和FTP
B.IP和UDP
C.RARP和DNS
D.FTP和SMTP
参考答案：D
—Excuse me. Where is Alice?
—She _____ to the shopping mall.[ ]
A. will go
B. has gone
C. had gone
D. have gone
慢性粒细胞白血病最突出的体征是
A．肝大B．脾大C．淋巴结肿大D．胸骨压痛E．牙龈出血
