洁净钢是指不含任何杂质元素的钢。

对于葡萄胎的 * * 出血，下列哪项说法恰当（）

A.多在葡萄胎清宫后几个月开始出现

B.出血原因在于葡萄胎组织自蜕膜剥离，使母体血管破裂

C.均为大量流血，可伴有水泡状组织，可导致贫血及继发感染

D.肿瘤组织可穿破子宫，形成腹腔内出血

E.为子宫病灶侵蚀血管所致

最适当的治疗方法是

A．单纯保守治疗

B．PTCD术

C．胆囊切除术

D．胆囊造瘘术

E．胆总管探查术

主风机的风量减小，电流减小，可能原因：（）。

A、床面振幅小

B、旋风除尘器堵塞

C、管路积尘堵塞

D、叶轮被杂物缠住

E、送风管路堵塞

同城提入业务相当于预判发起的环节是（）。

A.凭证审核

B.信息补录

C.图像扫描

D.自动/人工匹配

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) hypefiinks, 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．superlinks

B．links

C．hyperlinks

D．connections