在工艺流程中最佳温度的保证,需要传热的知识。
参考答案:对
下列现象,各属于哪一种物态变化
(1)用钢水浇铸火车轮是______;
(2)把废铁块熔成铁水是______;
(3)冬夜出现的“霜”是______;
(4)冬天,冻了冰的衣服也变干了______;
(5)大气中水蒸气凝成小水珠,形成降雨______.
How careless it was _______ Millie to make _______ many silly mistakes in the Math
exam!
A.of; so
B.for; such
C.for; so
D.of; such