安全生活离不开化学.下列说法错误是( )
A:用食盐腌渍肉类食品,能防止变质
B:工业用盐亚硝酸钠对人体有害,不能用于烹饪
C:进入久未开启的菜窖前,要做灯火实验
D:发现煤气泄漏,应立即打开换气扇开关换气
Kobe Bryant is a basketball hero. He is admired _______ millions of people _______ not only his achievements but also his spirit.
观察染色体的最佳时期是
Look! The panda is so ____. It's _____ than both of us.