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【多选题】
有关认知症的说法正确的是A.
又称为老年痴呆、脑退化症、失智症
B.
以获得性认知功能损害为核心，并导致患者日常生活、社会交往和工作能力明显减退的综合征
C.
伴有精神，行为和人格异常
D.
认知症的发病率随着年龄的增长而增加
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举一反三
【单选题】Which of these statements is NOT true, according to the reading passage? Their journeys were long, tiring and often dangerous, so ______.
A.
they had to arm themselves with wooden sticks
B.
they protected themselves with stone clubs
C.
they had to travel in groups
D.
they never traveled at night
【单选题】--Must I park my car behind the cinema? --No, you . You park it here. [ ]
A.
mustn't, may
B.
may not, must
C.
don't have to, may
D.
shouldn't, must
【单选题】Country and folk music have a lot in common, but the basic differences are:
A.
In folk , the songs are often about political issues and events, country music songs are usually about personal issues.
B.
There are many styles and subgenres of Country Music in these days.
C.
Generally speaking, country music groups are larger than folk music singing groups.
D.
All of the above.
【简答题】统计总体具有三个特征,即 、 和 ,其中 是统计总体最基本的特征。
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