选择有信誉和合格资质的勘察设计单位进行勘察是( )在项目准备阶段的任务。A．承包商

下列说法中，与“不良行为可能发展为违法犯罪”蕴含的道理一致的是

①千里之堤，毁于蚁穴                        ② 守法朝朝乐，违法日日愁

③勿以恶小而为之，勿以善小而不为             ④小洞不补，大洞吃苦

A．①②④    B．②③④            C．①②③          D ①③④

已知定义域为R的函数f(x)在区间(8,+∞)上为减函数，且函数y=f(x+8)为偶函数，则

A．f(6)＞f(7)

B．f(6)＞f(9)

C．f(7)＞f(9)

D．f(7)＞f(10)

常用于核心脏病学检查的放射性药物为（）。

A.⁹⁹Tc^m-MIBI用于心肌灌注显像

B.⁹⁹Tc^m-DTPA可用于首次通过法心血管造影

C.⁹⁹Tc^m-焦磷酸盐可用于心肌梗死阳性显像

D.¹³NH₃用于心肌灌注显像

E.⁹⁹Tc^m-RBC用于ECG门电路平衡法

男性，25岁，心悸气短6年，近2周症状加重，伴下肢水肿。查体：心界向两侧扩大，心尖部有隆隆样舒张中晚期杂音及收缩期3/6级吹风样杂音，胸骨左缘第3肋间有哈气样舒张期杂音，血压145/50mmHg。最可能的诊断是（）

A.二尖瓣狭窄合并主动脉瓣关闭不全

B.二尖瓣狭窄合并肺动脉瓣关闭不全

C.二尖瓣狭窄合并二尖瓣关闭不全

D.二尖瓣关闭不全合并主动脉瓣关闭不全

E.二尖瓣窄漏合并主动脉瓣关闭不全

For each blank, choose the best answer from the four choices and write down on the answer sheet.
Web browser is simply a terminal emulator, designed to display text on a screen. The two essential differences between an ordinary terminal emulator and a Web browser are that the browser knows how to deal with (71) , and that it has a mechanism for (72) graphical files. Display text, display graphics, and (73) hyperlinks—there’s 99 percent of the (74) value. That’s not to say that the manufacturers didn’t go all-out to attach a hyperactive efflorescence of useless capabilities onto their browsers. Remember when media channels in the browser were a big deal, instead of the clutter you can’t wait to delete from your favorites of bookmarks menu Remember when client-side Java applets were supposed to become the preferred (75) for application development Remember frames and all their nasty side effects

A. displayingB. illustrating C. drawingD. writing