1) He’s familiar to me. I remember _________(see) him somewherebefore.
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2) _________ (study) abroad is a painful experience for some students.
3) He looks forward to ________ (receive) your letter again.
4) The movie is so moving that every spectator can’t help ________(cry).
以下无需手术治疗的肛门疾患是
A. 急性坐骨直肠间隙感染脓肿未形成
B. 肛瘘
C. 肛裂
D. 混合痔
E. 血栓性外痔