多根多处肋骨骨折患者，最典型的症状和体征是
A．疼痛剧烈
B．呼吸困难
C．伤处肿胀青紫
D．反常呼吸运动
E．胸廓挤压痛
参考答案：D
图上距离总比实际距离小．______． （判断对错）
Where did they suggest _____ during the summer holidays? [ ]
A. shall we go
B. should we go
C. we should go
D. we will go
