單項(xiàng)選擇題
設(shè)f(x)為連續(xù)函數(shù),F(xiàn)(x)是f(x)的原函數(shù),則()。
A、當(dāng)f(x)是奇函數(shù)時,F(xiàn)(x)必為偶函數(shù)
B、當(dāng)f(x)是偶函數(shù)時,F(xiàn)(x)必為奇函數(shù)
C、當(dāng)f(x)是周期函數(shù)時,F(xiàn)(x)必為周期函數(shù)
D、當(dāng)f(x)是單增函數(shù)時,F(xiàn)(x)必為單增函數(shù)
E、當(dāng)f(x)是單減函數(shù)時,F(xiàn)(x)必為單減函數(shù)