A:水加热到很高的温度都难以分解
B:水结成冰体积膨胀
C:CH4、SiH4、GeH4、SnH4熔点随相对分子质量增大而升高
D:HF、HCl、HBr、HI的热稳定性依次减弱
— What should we do to reduce(减少) food waste?
— In a restaurant only order as ________as we need and try to eat it up.
从库尔勒开往西安的列车对铁轨的磨损程度( )