肠阿米巴病最常见的重要并发症是（）
A.肠出血
B.肠穿孔
C.阿米巴肝脓肿
D.结肠肉芽肿
E.阑尾炎
参考答案：A
—Do you know where Mary is?
—No, I don’t. I ______ her since last Sunday night.
A．haven’t seen
B．didn’t see
C．won’t see
D．don’t see
—_____ do you often play with?
—My good friend Mary.[ ]
A. What
B. Whose
C. Who
D. How
