-Where’s my basketball?
-__________, I don’t know.[ ]
A. Hello
B. Hi
C. Not
D. Sorry
答案:D
Do you see ________ elephants?[ ]
A. any
B. a
C. an
十二指肠球部溃疡的疼痛规律为
A.疼痛进食疼痛
B.疼痛进食缓解
C.进食疼痛疼痛
D.进食疼痛缓解
E.无一定规律