A:①②③
B:①②④
C:②③④
D:①③④
欧洲宗教改革运动的导火线是( )
函数y=mx2+x-2m(m是常数)的图像与x轴的交点个数为( )
在呼吸过程中,气体的吸入是由于( )
(____)A. This is the leg.
(____)B. Let's go to school.
(____)C. Shake your body.
(____)D. This is my face.
(____)E. Touch your nose.