“黄梅戏”是哪个省的地方戏？（）
A.四川
B.河南
C.安徽
D.河北
参考答案：C
All the students in our class are over fifteen years old except (除……之外) Li Lei. He is ______ in our class. [ ]
A. younger
B. the oldest
C. the youngest
D. older
临床输血时应当医师应当做好哪些工作？
