主页
学科
搜索
账户
常见问题
当前学科:中级汽油加氢装置操作工考试
题目:
单选
加氢催化剂组成中一般不包括()部分。
A . A、活性组分
B . B、助催化剂
C . C、载体
D . D、瓷球
答案:
<查看本题扣1积分>
查看答案
答案不对?请尝试站内搜索
推荐知识点:
女,30岁。婚后半年,自诉妊娠6个月,无胎动。妇科检查:宫颈口闭,宫体2个月大小,B超提示无胎心搏动。在做刮宫术前,应重视哪项实验室检查()
浮动床水垫层过高可导致床层在成床或落床时发生()现象。
反击式水轮机的能量转换主要是水力势能的转换
倒顺开关主要用于()KW以下的小容量异步电动机正反转的手动控制。
血液常规分析所用的抗凝剂()。
与气虚关系最密切的脏腑是()。
关闭柜式调压器之后需打开()放空。
以下哪种产妇不是必须在分娩开始前入院()
亚洲最早的报纸是1615年外国殖民者办的《新闻记要》。它的出版地是()
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.