a×14=b×18(a≠0),
a:b=18:14=1:2;
故判断:正确.
The news that our school will move to a better place sounds .
A.well
B.suddenly
C.exciting
D.happily
铁有三种同素异构体在912度以下时为()立方结构,在912度以上,1394度以下时为面心立方结构,高于1394度而低于熔点时为体心立方结构.