胫骨下1/3骨折易引起
A．血管损伤B．神经损伤C．骨的缺血性坏死D．骨筋膜室综合征E．骨折不愈合
参考答案：E
The two boys_____ games on the computer for three hours, and they would continue till midnight
A．were playing
B．had played
C．had been playing
D．has been chatting
克雷伯杆菌肺炎首选（）
A.青霉素
B.红霉素
C.庆大霉素
D.洁霉素
E.耐青霉素酶的β-内酰胺类抗生素
