诊断儿童患猩红热的特征性病变是
A．轻度腹泻B．全身弥漫性红疹C．剧烈头痛D．高热寒战E．咳嗽呕吐
参考答案：B
任意写出一个解为3的一元一次方程_______________.
Had it not been for the fact that she ____ in the accident, she ____ in the race．
A．got injured; would have competed
B．had got injured; would compete
C．would be injured; would have competed
D．should be injured; would compete
