The husband and wife have strange habits. He'd like to sleep with lamp _______ at night and his wife likes to sleep with the window _______.
A:burning; wide open
B:burnt; widely opened
C:burnt; wide open
D:burning; widely open
如图表示一定质量的KClO3和MnO2固体混合物受热过程中,某变量y随时间的变化趋势,纵坐标表示的是( )
十一届三中全会以后,集体土地可以长期包给农民使用,调动了他们的生产积极性,推动了中国农业的大发展。这是因为( )