下列元素名称与其对应的元素符号完全正确的是( )
A：氯cl
B：氖 Na
C：锌Zn
D：铜Ca
原尿中不含有的成分是（ ）
Shakespeare, who devoted himself to writing novels, plays and poems, ____ (consider) to be the greatest writer in the English language, even today.
环境保护要从我做起，从现在做起。（ ）
