耳疖、耳疮的共同临床表现是()
A.局限红肿,突起如椒目
B.外耳道弥漫性红肿
C.耳部疼痛,耳郭牵拉痛
D.外耳道有白色浊物堆积
E.耳痒耳痛,溃疡渗液
参考答案:C
原子失去最外层电子后,会改变的是( )
A.元素种类
B.相对原子质量
C.中子数
D.化学性质
I couldn’t help but wonder how country life would change the funny, lazy Tom who had once put up a
notice on the wall above his bed that _____, WAKE FOR FOOD. [ ]
A. showed
B. wrote
C. spoke
D. said