问题
单项选择题
Since the good sare（）stock，they cannot be supplied（）stock.
a.out of，at
b.outside，from
c.without，from
d.out of，ex
答案
参考答案：D
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Since the good sare（）stock，they cannot be supplied（）stock.
a.out of，at
b.outside，from
c.without，from
d.out of，ex
参考答案：D