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下面是关于Pentium微处理器页目录描述符和页描述符的叙述： ①存储器分页管理系统中包含一个页目录表和一个反表，它们都有1K个描述符 ②页目录描述符提供页表的基地址，页表描述符提供存储页面的基地址 ③若CR4寄存器中页大小扩展控制位PSE=0，则对于4GB的存储器空间，为了将线性地址映射到实际存在的物理地址，必须首先在页目录描述符中提供页表基地址，然后再在页描述符中填写页的基地址 ④若CR4寄存器中页大小扩展控制位PSE=1，则对于4GB的存储器空间，可以不需要页表，就能将线性地址映射到实际存在的物理地址上面叙述正确的是( )。
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The earliest controversies about the relationship between photography and art centered on whether photographer’s fidelity to appearances and dependence on a machine allowed it to be a fine art (1) distinctive from merely a practical art. Throughout the nineteenth century, the defense of photography was identical with the (2) to establish it as a fine art. (3) the charge that photographers was a soulless mechanical duplication of (4) , photographers (5) that it was instead a privileged (6) of seeing, a revolt against commonplace vision, and (7) worthy an art than painting.Ironically, (8) photography is securely established as a fine art, many photographers find it pretentious or (9) to label it as such. Serious photographers are no longer willing to (10) whether photography is not involved with art, (11) to proclaim that their own work is not involved with it. This shows the extent (12) which they simply take for granted the concept of art imposed by the (13) of Modernism: the better the art, the more subversive it is of the traditional aims of art.Photographers’ disclaimers of any interest in making art tell us more about the troubled status of the contemporary (14) of art (15) about whether photography is or is not art. Photography, (16) Pop painting, reassures viewers that art is not hard; photography seems to be more about its subjects than about art.Photography, (17) , has developed all the (18) and self-consciousness of a classic Modernist art. Many professionals privately have begun to worry that the (19) of photography as an activity subversive of the traditional pretensions of art has gone so far that the public will forget that photography is a distinctive and exalted activity-- (20) , an art. Read the following text. Choose the best word(s) for each numbered blank and mark A, B, C, and D on ANSWER SHEET 1.12（）
The earliest controversies about the relationship between photography and art centered on whether photographer’s fidelity to appearances and dependence on a machine allowed it to be a fine art (1) distinctive from merely a practical art. Throughout the nineteenth century, the defense of photography was identical with the (2) to establish it as a fine art. (3) the charge that photographers was a soulless mechanical duplication of (4) , photographers (5) that it was instead a privileged (6) of seeing, a revolt against commonplace vision, and (7) worthy an art than painting.Ironically, (8) photography is securely established as a fine art, many photographers find it pretentious or (9) to label it as such. Serious photographers are no longer willing to (10) whether photography is not involved with art, (11) to proclaim that their own work is not involved with it. This shows the extent (12) which they simply take for granted the concept of art imposed by the (13) of Modernism: the better the art, the more subversive it is of the traditional aims of art.Photographers’ disclaimers of any interest in making art tell us more about the troubled status of the contemporary (14) of art (15) about whether photography is or is not art. Photography, (16) Pop painting, reassures viewers that art is not hard; photography seems to be more about its subjects than about art.Photography, (17) , has developed all the (18) and self-consciousness of a classic Modernist art. Many professionals privately have begun to worry that the (19) of photography as an activity subversive of the traditional pretensions of art has gone so far that the public will forget that photography is a distinctive and exalted activity-- (20) , an art. Read the following text. Choose the best word(s) for each numbered blank and mark A, B, C, and D on ANSWER SHEET 1.1（）
患者，43岁，经检查初步印象是慢性牙周炎。 若其主治医生考虑实施GTR术，可能是鉴于
患者，43岁，经检查初步印象是慢性牙周炎。 确诊之前应做的检查不包括
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