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要将/tmp目录下名字以script字样打头,紧接两个任意字符,以.sh结尾的文件的访问权限改成754,下面哪种做法是正确的?
A、chmod 754 /tmp/script??.sh
B、chmod u=rwx,g=rx,o=r /tmp/script??.sh
C、chmod u+rwx,g+rx,o+r /tmp/script??.sh
D、chmod 754 /tmp/script[??].sh
E、chmod 754 /tmp/script[**].sh
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Assume that Company A obtains some of its inputs in the foreign country.As the foreign currency becomes a larger portion of production total costs, local currency depreciation leads to a (an)____ in the foreign currency cost of the product and a (an)____ in the local currency cost compared to the cost changes that occur when all input costs are local currency denominated.
A.Decrease, increase
B.increase, decrease
C.decrease, decrease
D.increase, increase
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理想状态下,如果从陆地上的一个点不断向下挖洞,并最终将地球挖穿,从这个洞跳下去能否到达地球另一端?
A.能
B.不能
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