I don't like going out. I'm very _____.[ ]
A. funny
B. quiet
C. quite
D. active
答案:B
三角形皮瓣三角前尖角在多少时可直接缝合
A.45°B.90°C.60°D.70°E.50°
凝汽器水侧包括哪些部件?