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【单选题】
太过而，超过了平衡，导致物极必反，因此要居安思危，不可欲求太过，否则必生悔恨。这是乾卦爻辞中的（ ）所诠释的道理。A.
九二，见，大人
B.
九三，君子终日，若咎
C.
上九，有悔
D.
用九，见群龙无首，吉
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举一反三
【单选题】Beethoven, the great musician, wrote nine symphonies in his life, most of them ______ after he had lost his hearing.
A.
written
B.
were written
C.
had been written
D.
having written
【单选题】Is this the house ________ the great musician was born in?
A.
which
B.
where
C.
the one
D.
it
【单选题】This is the house ____ the great musician was born.
A.
which
B.
in which
C.
in where
D.
at which
【简答题】除两端的葡萄糖基外,每个葡萄糖基具有三个游离的羟基,分别位于 C 2 、 和 位置上,它们的反应活性不同,一般情况下反应活性最强的是 ;然而对于醚化反应来说,取决于羟基的离子化程度,因此反应活性最强的是 。
【简答题】装饰图案的分类:从图案的形态类型上可分为( )和抽象形态图案。
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