上肢常见的骨折有()
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.肱骨踝上骨折
参考答案:A, B, C, E
He said he would consider ______ them a hand if he was asked for. [ ]
A. to give
B. give
C. giving
D. to giving
操作系统程序与多个用户程序共用系统中的资源,这属于操作系统的【 】。
A.并发性
B.共享性
C.随机性
D.多路性