问题
选择题
As a senior high student, you should________your energy on how to master the
skills of learning. [ ]
A. impress
B. spend
C. concentrate
D. use
答案
答案：C
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As a senior high student, you should________your energy on how to master the skills of learning. [ ]
A. impress
B. spend
C. concentrate
D. use
答案：C
