问题
选择题
24. _____ is known to us all is that to work hard to achieve a goal is more important than only to have a goal.
A．What
B．As
C．it
D．This
答案
答案：A
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24. _____ is known to us all is that to work hard to achieve a goal is more important than only to have a goal.
A．What
B．As
C．it
D．This
答案：A