Cho hàm số \(y=f(x)\) có bảng biến thiên như hình...
Câu hỏi: Cho hàm số \(y=f(x)\) có bảng biến thiên như hình vẽ.![](data:image/png;base64,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)
A. 2
B. 4
C. 3
D. 1
Câu hỏi trên thuộc đề trắc nghiệm
Đề thi thử THPT QG năm 2019 môn Toán Trường THPT Chuyên Quang Trung - Bình Phước lần 3