肺内少见的良性肿瘤有（）
A.错构瘤
B.软骨瘤
C.纤维瘤
D.平滑肌瘤
E.脂肪瘤
参考答案：B, C, D, E
—It is said that a larger playground in our school _______ now.
—Yeah. It _______ five months. [ ]
A. is building, takes
B. is being built, will take
C. is built, will take
D. is being built, takes
心悸概述
