儿茶酚胺
参考答案:
是一种含有儿茶酚和胺基的神经类物质,包括去甲肾上腺素(NAD.、肾上腺素(AD.和多巴胺(DA.。
广东沿海滩涂围垦,需要经过筑堤、挖渠等工程措施和种植适应性植物等生物措施改造,4—5年后才能种植粮食作物。据此完成14~15题。
小题1: 改造滩涂所种植的适应性植物应
A.耐湿
B.耐旱
C.耐盐
D.抗倒伏小题2:若缩短滩涂改造时间,需投入更多的
A.花费
B.农家肥
C.农药
D.淡水
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