Pharming is a scamming practice in which malicious code is installed on a personal computer or server, misdirecting users to ___29___ Web sites without their knowledge or consent. Pharming has been called "phishing without a lure".

In phishing, the perpetrator sends out legitimate-___30___ e-mails, appearing to come from some of the Web’s most popular sites, in an effort to obtain personal and financial information from individual recipients. But in pharming, larger numbers of computer users can be ___31___ because it is not necessary to target individuals one by one and no conscious action is required on the part of the victim.In one form of pharming attack, code sent in an e-mail modifies local host files on a personal computer. The host files convert URLs into the number strings that the computer uses to access Web sites. A computer with a compromised host file will go to the fake Web site even if a user types in the correct Internet address or clicks on an affected ___32___ entry. Some spyware removal programs can correct the corruption, but it frequently recurs unless the user changes browsing ___33___

32（）

A.hypertext 

B.computation 

C.expectation 

D.bookmark

区别血管内、血管外溶血的指标是

A．血清结合珠蛋白检测，血管外溶血不增加

B．血浆游离血红蛋白检测，血管外溶血增加

C．含铁血黄素尿检验，慢性血管内溶血阳性

D．临床表现，血管外溶血脾肿大

E．血浆高铁血红素清蛋白检测，血管内溶血不增加