天线按水平方向图特性分类可分为两种：（）
A.下倾角可调天线与下倾角不可调天线
B.全向天线与定向天线
C.65度天线与90度天线
参考答案：B
Although she felt tired, she didn’t stop working.
A．She felt tired, she didn’t stop working.
B．She felt tired, so she stopped working.
C．But she felt tired, she didn’t stop working.
D．She felt tired, but she didn’t stop working.
贯穿结扎法的适应症是
A．Ⅰ、Ⅱ、Ⅲ期内痔B．Ⅱ、Ⅲ期内痔C．Ⅰ、Ⅱ期内痔D．Ⅲ期内痔E．Ⅰ、Ⅲ期内痔
