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【单选题】
2sin15 cos15 =A.
1/2
B.
-1/2
C.
2/√3
D.
-2/√3
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举一反三
【单选题】All of the following statements are TRUE except that _____________.
A.
many factors account for learning disorder
B.
a learning-disabled person shows no outward signs
C.
reading disabilities are a common problem that affects 10 percent of the population
D.
the train activity of learning-disabled children is different from that of normal children
【单选题】The price of commodities()on many factors like quality, demand, supply, etc.
A.
is basing
B.
has based
C.
is based
【简答题】Successful entrepreneurship depends on many factors. Of primary importance is money. ()
【简答题】How many prime factors of x are also prime factors of y? (1) x=30 (2) y is a multiple of x.
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