常见上肢骨折有（）
A.肱骨外科颈骨折
B.尺桡骨干双骨折
C.尺骨鹰嘴骨折
D.指骨骨折
E.肱骨髁上骨折
参考答案：A, B, E
距今一万多年前，桂林的（）已经进入母系氏族社会。
A.瓯越人
B.柳江人
C.麒麟人
D.甑皮岩人
Study the following picture carefully and write an essay entitled" Academic Falsification (欺诈) in China".
In the essay you should
1) describe the picture and interpret its meaning, and
2) give your comment on the topic.
