问题
选择题
I tried my best to _____ my balance on my new shoes while skating. [ ]
A. strike
B. keep
C. lose
D. hold
答案
答案：B
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I tried my best to _____ my balance on my new shoes while skating. [ ]
A. strike
B. keep
C. lose
D. hold
答案：B
则公司可以获得的最大利润是（）万元。取得最大利润时，原材料（）尚有剩余。