沉淀的类型与聚集速度有关,聚集速度大小主要相关因素是()。
A、物质的性质
B、溶液的浓度
C、过饱和度
D、相对过饱和度。
参考答案:D
----- Why do you think Liu Xiang is one of the best sportsman?
----- ______, he is the world record holder in men’s 110m hurdles, which is considered to be a big progress for Chinese athletes.
A.For the first time
B.Believe it or not
C.To give an example
D.To tell the truth
企业精神的基本内涵包括()基本点。
A.主体内容
B.形态特征
C.载体基础
D.发展机理