We're in class. You'd better not _______. [ ]
A. talk
B. talking
C. talked
D. to talk
答案:A
He told me he had finished the work ______.
A.two days ago
B.the day before
C.the next day
D.the day before yesterday
出现方肩畸形的疾病是
A.锁骨骨折
B.肩关节脱位
C.肱骨外科颈骨折
D.肩关节周围炎
E.肩袖撕裂伤