问题
选择题
Even though Jack has failed many times in his experiment，he holds a belief________he will succeed one
day if he carries on with it.[ ]
A．what
B．which
C．whether
D．that
答案
答案：D
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Even though Jack has failed many times in his experiment，he holds a belief________he will succeed one
day if he carries on with it.[ ]
A．what
B．which
C．whether
D．that
答案：D