单肺移植的最佳适应证是（）。
A.肺化脓症
B.肺源性心脏病
C.原发性肺动脉高压
D.慢性阻塞性肺疾病
E.特发性肺纤维化
参考答案：E
People prefer ______ TV or listen to music rather than ______ newspapers to relax themselves. [ ]
A. watching; read
B. watching; to read
C. to watch; read
D. to watch; reading
当稻米中直链淀粉含量在20%~30%时，蒸煮时吸水率高，体积膨胀率大，糊化温度高，米饭蓬松。
