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计算:2sin45°-(-1)-2+(π-3.14)0-
计算:|1-|-2sin45°+(π-3.14)0+2-2.
计算:|1-|-(3.14-π)0+()-1-4sin60°.
计算:(共24分每题4分)
(1) (2)[-2 2+(-2)3 ]-(-2)×(-3)
(3)()() (4)
(5)—14+〔1-(1-0.5×2)〕÷
(6)[(-3)2-22-(-5)2]××(-2)4
(1) (2)-(-2)×(-3)
(6)××(-2)4