启动磁盘执行一次输入／输出操作时，()是硬件设计时就固定的。
A. 寻找时间
B. 传送时间
C. 延迟时间
D. 一次I／O操作的总时间
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两个进程P、Q都需要三个资源1，2，3，系统中有资源1、2、3各一个，如果P请求资源的顺序是1、2、3，Q请求资源的顺序任意，共有3!=6种排列，其中共有()个排列可能导致死锁。
A. 3
B. 4
C. 5
D. 6
The phrase "chipped away at" in the first paragraph probably means
A. appealed,
B. repealed.
C. aggravated.
D. consolidated.
What happened on Thursday？
A. Israel announced plans to build up to 750 new homes in a Jewish settlement.
B. A Palestinian gunman killed eight students at a Jewish seminary.
C. Israel stepped up security across the country.
D. Olmert promised to fight militants in the West Bank and Gaza.
What is the main point of the article？
A. This article explains why European retail is one of the few industries anywhere on the globe.
B. In Europe, government prevent the Wal-Martification.
C. The real megastore action is moving outside Western Europe.
D. Safeway has become a particularly hot commodity in part because many of its stores have the combination of size and location.
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