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guek
xin
C. xing
D. xin
0.8B4/53/50.2
2.
si
sisshi
A.
9
B.
6
C.
9
D.
8
0.5C
4.___
0.6C
5.
0.5B
6.
0.6B
______
_______
7.
D.
0.6C
0.3
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