口腔黏膜发现哪些情况应警惕艾滋病()。
A.口腔毛状黏膜白斑
B.硬下疳
C.口腔卡波西肉瘤
D.年轻人发现白色念珠菌性口角炎
E.舌的树胶样肿
参考答案:A, C, D
In no way should we hunt and kill antelopes. _____, everyone should make great efforts to protect them.
A.In time
B.As a result
C.In addition
D.On the contrary
10.应采取哪些措施预防同类事故的再次发生