绒癌常见的死亡原因是下述哪项（）
A.肺转移
B. * * 转移
C.脑转移
D.胸腔转移
E.胃肠道转移
参考答案：C
根据句意填写正确的表示职业的单词。
1. I teach English in a school. I'm a _____________.
2. She cleans streets every morning. She is a _____________.
3. He sings in a bar. He is a _____________.
4. My father drives cars. He is a _____________.
5. My mother writes stories. She is a _____________.
ATM技术最大的特点是它能提供
A．最短路由选择算法
B．速率服务
C．QoS服务
D．互联服务
