髋关节后脱位可出现的并发症是()
A.坐骨神经损伤
B.股骨颈骨折
C.股骨头骨折
D.髋臼骨折
E.同侧股骨干骨折
参考答案:A, B, C, D, E
Tom asked the candy makers if they could make the chocolate easier ______ into small pieces.
A.break
B.breaking
C.broken
D.to break
架空线路夏季易发生哪些事故?如何防止?