肺动脉高压的典型表现为()
A．出现间隔线
B．残根征
C．肺野透亮度减低
D．多继发于左心衰
E．肺纹理增粗，结构模糊
参考答案：B
A．给手机充电
B．用电饭锅煮饭
C．用电风扇吹风
D．摩擦起电
Mrs Brown together with her children ______ going to Hainan ____ the holiday.[ ]
A. is , for
B. are , for
C. are , to
D. is, of
