《轧钢安全规程》规定使用煤气的生产区,其煤气危险区域的划分规定()为第二类区域。
A.煤气设备漏煤气处理
B.煤气仪表附近
C.煤气阀等设备的修理
D.加热炉
参考答案:B, C
通过合理的膳食和科学的烹调加工,能向机体提供足够数量的能量和各种营养素,并保持各营养素之间的数量平衡,以满足人体正常生理需要,保持人体健康的过程称为()
A.营养
B.吸收
C.利用
D.合理营养
E.摄入
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.Web browser’s
B.terminal’s
C.emulator’s
D.network’s