开放性胸部损伤的正确定义是（ ）
A．胸壁有伤口
B．肋骨骨折合并血气胸
C．支气管断裂
D．胸壁伤口与胸膜腔相通
E．血气胸伴皮下气肿
参考答案：D
At first he refused to admit he had stolen but when he was shown the videotape（录像带）he ________ and admitted everything.
A．broke up
B．broke away
C．broke down
D．broke in
我国法定体积和容积的基本单位包括立方米、立方分米、立方厘米、立方毫米。（）
