在TCP/IP参考模型中,文件传送协议属于( )的内容。
A.网络层
B.互连层
C.传输层
D.应用层
参考答案:D
解析: 文件传送协议FTP是依敕TCP协议的应用层协议。
针对呼吸,心跳停止所采用的初期心脏复苏措施包括:呼吸道通畅、人工呼吸、心脏挤压。胸外心脏挤压时手掌正确的位置是()
A.胸骨中下1/3
B.心脏前方的胸壁
C.剑突与胸骨交界处
D.胸骨左旁第4肋间
E.胸骨右旁第4肋间
The streets of the Dual Springs neighborhood, a migrant-worker hub in northern Beijing, are ______ . That’s no surprise; more than 13,000 people have been quarantined in China’s capital to halt the insidious spread of severe acute respiratory syndrome (SARS).
A.deserted
B.vacated
C.unlived in
D.removed