-
背水脱坡（滑坡）
-
规律具有必然性、重复性、稳定性和普遍性的特点。()
-
我国的注册会计师审阅准则是用以规范注册会计师执行（）。
-
企业参与市场竞争，不仅要了解谁是自己的客户，不一定要弄清谁是自己的竞争对手。
-
氧化铁皮在烧结生产作用（）。
-
DDN的主要特点是什么？
-
McDonald's, Greggs, KFC and Subway are today named as the most littered brands in England as Keep Britain Tidy called on fast-food companies to do more to tackle customers who drop their wrappers and drinkscartons(盒子) in the streets. Phil Barton, chief executive of Keep Britain Tidy,(62)its new Dirty Pig campaign, said it was the first time it had investigated which(63)made up "littered England" and the same names appeared again and again. "We(64)litterers for dropping this fast food litter(65)the first place but also believe the results havepertinent(相关的) messages for the fast food(66). McDonald's, Greggs, KFC and Subway need to do more to(67)littering by their customers." He recognised efforts made by McDonald's,(68)placing litter bins and increasing litter patrols, but its litter remained "all too prevalent". All fast food chains should reduce(69)packaging, he added. Companies could also reduce prices(70)those who stayed to eat food on their premises, offer money-offvouchers(代金券) or other(71)for those who returned packaging and put more bins at(72)points in local streets, not just outside their premises. A(73)for McDonald's said: "We do our best. Obviously we ask all our customers to dispose of litter responsibly." Trials of more extensive, all-day litter patrols were(74)in Manchester and Birmingham. KFC said it took its(75)for litter management "very seriously", and would introduce a programme to reduce packaging(76)many products. Subway said that it worked hard to(77)the impact of litter on communities,(78)it was "still down to the(79)customer to dispose of their litter responsibly". Greggs said it recognised the " continuing challenge for us all ",(80)having already taken measures to help(81)the issue.
-
200MW机组，给水泵前置泵与主泵靠（）相连。
-
在Windows系统中，资源管理器左窗口的“+”表示该文件下还有更小的文件夹未被打开，“-”表示文件夹已全部被打开。()
-
慢性淋巴性甲状腺炎（桥本病）的超声特征是（）。