Jack was born ___________ May 5th, 1980.[ ]
A. in
B. at
C. on
D. /
答案:C
舟状腹见于().
A.肝硬化腹水
B.急性胃穿孔致腹膜炎
C.胰腺囊肿
D.癌症晚期恶病质
居住用地受坡度的限制相对较小,最大坡度可为( )。
A.5% B.10%C.12% D.15%