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【单选题】
以下资源管理功能中,不属于操作系统的功能是( )。A.
处理机管理
B.
文件管理
C.
键盘管理
D.
设备管理
拍照语音搜题，微信中搜索"皮皮学"使用
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【简答题】平面一般力系的三矩式平衡方程的附加条件是()。
【单选题】I could hardly believe his reason for being late____ his bike broke down on his way to school.
A.
why
B.
that
C.
which
D.
how
【单选题】Scarlett is graduating from culinary school soon and she often imagines opening her own comfort food restaurant. Her other passion is skiing in Colorado, where she travels to four or five times every ...
A.
Restaurants are relatively easy businesses to start, but are labor intensive and also have the greatest failure rate.
B.
Restaurants are not the easiest type of business to start, but once you get it going, you will have plenty of time for skiing.
C.
Most restaurant owners get rich if they open their own, independent restaurant as opposed to starting a franchised operation.
D.
Franchised operations will take less time on the part of the owner than a regular independently owned operation. If she opens a franchise, she will have more time for creativity in the business, and more time for skiing too.
【单选题】Which one is not the reason that the South didn’t support school education?
A.
education is a private matter
B.
for Santa’s sake
C.
believe in home training
D.
power control
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