风肿的特点是
A．肿块硬如馒，有囊性感
B．坚硬如石，皮色不变
C．皮色发白，不肿肤冷
D．肿势宣浮，来急去快
E．漫肿，不红不热
参考答案：D
—I hear Kris had an accident as he was riding his bike to school yesterday.
—________？ He is always so careful when he is riding.
A．What for
B．How come
C．Why that
D．So what
新装或大修后的设备，均应组织相关部门进行（），验收合格办理交接手续后，方可投入试运行。
A.试运行
B.试用
C.检测
D.工程验收
