若周转时间为20小时，则大循环天数为（），每个大循环内有（）小循环。A．5天、6个

肝性脑病的诱因有（ ）、（ ）、（ ）、（ ）、（ ）。

Pharming is a scamming practice in which malicious code is installed on a personal computer or server, misdirecting users to (71) Web sites without their knowledge or consent. Pharming has been called "phishing without a lure".
In phishing, the perpetrator sends out legitimate- (72) 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 (73) 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 (74) entry. Some spyware removal programs can correct the corruption, but it frequently recurs unless the user changes browsing ( 75 ) .

A．few

B．fraudulent

C．normal

D．structured

男，58岁，发现血压升高18年，反复发作胸痛3年。心电图检查示心肌缺血，半年前行冠状动脉移动造影示左前降支中段狭窄72%，并做PTCA。血压150/100mmHg，心率68次/分，节律齐，无心脏杂音，未发现任何黄色瘤。血脂测定结果4年前为：TG5.6mmol/L，TC5.2mmol/L，HDL-C 1.1mmol/L，现在为：TG2.8mmol/L，TC7.1mmol/L，HDL-C1.2mmol/L。其父亲有高血压和高脂血症，死于中风。有两个弟弟，其中一个血浆甘油三酯升高。

如结合症状、家庭史与血脂测定结果，该患者基本上可诊断为（）。

A．家族性高胆固醇血症

B．家族性高甘油三酯血症

C．家族性混合型高脂血症

D．家族性异常B脂蛋白血症

E．家族性载脂蛋白B100缺陷症

有一准确度等级为1．0的压力表，其量程为一0．1兆帕一1．6兆帕，则其允许误差为（）

A．±0.016兆帕

B．±0.017兆帕；

C.±0.015兆帕。

己烯雌酚注射剂中加入苯甲醇是为了( )。

A．有利于制剂稳定
B．减少制剂刺激性
C．调节pH
D．抑制微生物生长
E．增溶