He           the book to the library if he            it tomorrow.

A．returns; finishes reading

B．will return; will finish to read

C．will return; finishes to read

D．will return; finishes reading

肺动脉高压早期的X线表现是

A．双肺纹理增多

B．双肺透亮度增加

C．右下肺动脉主干增宽

D．右心房肥大

E．右心室肥厚、扩张