自然界中几乎不存在纯净的水，若要对自然界中是水进行净化处理，

【名词&注释】

互联网(internet)、不存在(there is no)、自然界(nature)

[单选题]自然界中几乎不存在纯净的水，若要对自然界中是水进行净化处理，其中净化程度最高的方法是

A. 吸附
B. 沉降
C. 过滤
D. 蒸馏

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学习资料：

[单选题]70．

A. Internet
B. book
C. e-mail
D. school

[单选题]AThe music club

A. Read about the four people． How many things can each student do?
B. Ma Hui
C. I can play the violin and the piano．
D. Petrus
E. I can play the violin．
F. Angela
G. I can play the trumpet and the guitar．
H. Albert
I. I can play the trumpet and the guitar．
J. How many things can Ma Hui do?
K. One
L. Two
M. Three
N. Four

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