问题
选择题
Do you know any other foreign language ____ English?[ ]
A. without
B. beside
C. besides
D. except
答案
答案：C
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Do you know any other foreign language ____ English?[ ]
A. without
B. beside
C. besides
D. except
答案：C
=1.0850，s2=0.4220。欲比较两组血磷值的平均水平，应进行（）