为了使合同具有合法性和真实性，应对所签合同进行强制性公证。( )
参考答案：错
_____ could be better than having a cup of tea after a day of work, which helps you relax.
A．Anything
B．Something
C．Everything
D．Nothing
在标准大气压下，液态氧、氮、氦的沸点分别是-183℃、-196℃、-269℃．若从液态空气中提取这些气体，随着温度升高而被分离出来的顺序是______．
