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【简答题】

In a competitive economy, the consumer usually has the choice of several different brands of the same product. Yet underneath their labels, the products are often nearly (36) . One manufacturer’s toothpaste tends to differ very little from another manufacture’s. Thus, manufacturers are (37) with a problem-how to keep sales high enough to stay in business. Manufacturers solve this problem by (38) They try to (39) consumers in various ways. In fact, advertisements may be (40) into two types according to the kind of appeals they use.
One type of advertisement tries to appeal to the consumer’s reasoning mind. It may offer a (41) that seems scientific. For example it may say that the dentists (42) flash toothpaste. In selling a product, the truth of the advertising may be less important than the appearance of truth. A scientific (43) gives the appearance of truth.
Another type of advertisement tries to amuse the potential buyer. (44) .
One way of doing this is to make the products appear alive. For example, (45) . Ads of this sort are silly, but they also tend to be amusing. (46) .

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【单选题】假设进程A的逻辑页4与进程B的逻辑页5要共享物理页8,那么应该在进程A页表的逻辑页4和进程B页表的逻辑页5对应的物理页处分别填() A.4、5 B.5、4 C.5、8 D.8、8

A.
某操作系统采用分页存储管理方式,下图给出了进程A和进程B的页表结构。如果物理页的大小为512字节,那么进程A逻辑地址为1111(十进制)的变量存放在()号物理内存页中。假设进程A的逻辑页4与进程B的逻辑页5要共享物理页8,那么应该在进程A页表的逻辑页4和进程B页表的逻辑页5对应的物理页处分别填()。