函数f(x)=x3-3x2+1是减函数的区间为[ ]
A.(2,+∞)
B.(-∞,2)
C.(-∞,0)
D.(0,2)
D
林则徐、康有为、孙中山三人的相同点有
①主张推翻清政府②要求挽救民族危亡③主张向西方学习④主张实行君主立宪制[ ]
A.①②
B.②③
C.①④
D.①③
After finishing middle school, my sister did nothing ________ at home.
A.but to read
B.but read
C.besides reading
D.except to read