你能跑的快吗?(肯定回答)
____ you run fast? Yes, I ____.
青霉素是下列哪种真菌产生的( )
In Western countries, women are always dressed white their wedding day, be cause white is the color of purity.
物质
分子式
熔点℃
沸点℃
密度(g/cm3)
溶解性
乙二醇
C2H6O2
﹣11.5
198
1.11
易溶于水和乙醇
丙三醇
C3H8O3
17.9
290
1.26
能跟水、酒精以任意比互溶