题目内容：
Why does the author think that the grads are given an extra chance in starting a career?
A．The one-time recruitment payment offered by the PLA may ease the grads' economic
burden. B．The grads who join the army have more chances to further their study after completing their service.
C．Graduates who have signed up can give up before finishing enlistment if finding more suitable job.
D．No restrictions are made on things like going abroad after the service period.
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答案解析：