老年人患病的特点是
A.此伏彼起,并发症多
B.意识障碍,诊断困难
C.起病隐袭,症状多变
D.病情进展,容易凶险
E.多种疾病,集于一身
参考答案:A,C,E
Our new English teacher made a strong ______ on all of us with his humorous speech.
A.description
B.contribution
C.impression
D.expression
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