I don't know he will win tomorrow. I never doubt it will rain tomorrow.
A:if, if
B:if, that
C:whether, whether
D:that, if
相同质量的甲和乙两种液体,使它们在相同时间内 吸收的热量相等,它们的温度随加热时间变化的关系图像如图所示.根据图像可以得出的正确说法是( )