问题
选择题
If you keep on, you'll succeed ________.[ ]
A. in time
B. at one time
C. at the same time
D. on time
答案
答案：A
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If you keep on, you'll succeed ________.[ ]
A. in time
B. at one time
C. at the same time
D. on time
答案：A
运动时工作侧颊尖不接触为达到侧向