阿尔茨海默病常见的死因包括()
A.脑部病变
B.肺部感染
C.心肺衰竭
D.压疮
E.深静脉血栓
参考答案:B, D, E
Please tell your parents _____ come to the school. We've put off the meeting.[ ]
A. don't
B. not to
C. to not
D. not
下列做法正确的是( )
A.用甲醛水溶液浸泡水产品以延长保鲜期
B.用肥皂水区分硬水和软水
C.服用氢氧化钠治疗胃酸过多
D.将工业用盐(如NaNO2)用于烹调