题干

用下列序号填空

①烧碱、②盐酸、③稀硫酸、④熟石灰、⑤石灰石、⑥氢氧化铝

a存在于人体胃液中,能帮助消化的是____

b医疗上,可用于中和胃酸过多的是____

c用于建筑材料的是____

d可用于某些气体干燥剂的是____

e改良酸性土壤____

上一题 下一题 0.0难度 选择题 更新时间:2018-06-20 08:16:32

答案(点此获取答案解析)

②,⑥,⑤,①,④

同类题2

根据短文内容,从短文后的选项中选出能填入空白处的最佳选项,选项中有两项为多余选项。

Planning a September trip to France

    September is one of the very best months to visit France.Not only will you enjoy plenty of sunshine and warm weather, but the tourist season is beginning to wind down—which means cheaper airfares, lower prices at hotels, and fewer crowds.____

●Go wine tasting

    ____And there are plenty of wine-related events and festivals around the country.So September is a great time to visit the vineyards around the country and go wine tasting.The Bordeaux, Loire and Burgundy regions are all lovely and great places to visit vineyards.Besides that, going to the castles of the Loire region in between visiting vineyards on such warm and Sunny days is also very enjoyable.

____

    The temperatures are slightly lower,but plenty of sunshine makes for perfect conditions to enjoy a barge cruise on the canals of France.With such comfortable weather and beautiful scenery at this time of year, nothing equals hanging out on the deck of a barge.

●Visit the museums

    Many museums in France have extended opening hours during the summer to accommodate the extra tourists and locals. And some museums also have extended opening hours into September.Wandering around the Louvre will take you into a wonder world,where you can enjoy the world-famous art.____

    Besides the above,riding a bike through France's villages is also a welcome activity for young visitors in September.You can shop for the most fashionable clothes or goods here.You can see the beautiful and fantastic scenery along the road.____

A.Take a barge cruise.

B.Enjoy the music concerts.

C.So, don't hesitate and start to plan your September trip to France flow!

D.France is a beautiful country.

E.September is the beginning of the grape harvest season in France.

F.Going out of the Louvre, you can walk to the modern and fashionable Champs Elysees to do some shopping.

G.If this is your first trip to France, here is some handy information to help you get started planning your vacation!

同类题4

麦当劳的礼物

大一圣诞节前的那个周末,我回了家,喝着妈特地给我煨的排骨汤,我心里一直在犹豫:该不该向妈妈要这笔钱呢?

爸去世得早,自小我便看惯了妈的操劳,从不曾向她要过额外的花费。可是,这次是不同的,因为朱樱。

常常地,与朱樱徘徊在小径上,不知不觉,走遍了校园的每一个角落,不知怎么样才可以将时光留住。室友们为我出谋划策,建议我趁热打铁,给朱樱一个浪漫的圣诞夜。中式餐厅嘈杂,气氛差,情调好的地方我又消费不起,最后选定了麦当劳。

可是该怎么向妈开口呢?滚烫的汤哽在我喉间,我反复思量着,室内满满的全是我喝汤的声音。

妈坐我对面,静静地看我,忽然说:“前两天,厂里开了个会,说要下岗一批人。”

我霍地站起,惊恐地盯着妈的脸:“妈,您下岗了?”妈一愣,然后就笑了,笑容里是无限的痛惜与爱怜:“看你吓的。我说要下岗一批人,又不是说我,妈干得好好的呢。”

我松了一口气,想,妈现在心情应该不错,咬咬嘴唇一口气说出来:“妈,下学期要去工厂实习,学校要交200块钱材料费。”

妈“啊一”了一声,有明显的失望意味:“又要交钱……”我不敢看妈的眼睛:“要不然,我跟老师说……”妈已转开了身,拉开了抽屉:“我给你两张100元的,路上拿好。”

妈找了半天,也只找了一张100元,一张50元,其余的都是10元的。她把每一张钱的角都压平,仔细地数了几遍,把钱折了4折,叠成一个小方块,小心地塞进我书包的夹层里,把双层拉链拉好。送我出门的时候还在反复地叮咛:“车上小心,现在小偷多。”我“嗯嗯”地答应着,却已控制不住自己的脚步,飞奔着,越跑越急,要即刻到来樱的身边。

圣诞节的黄昏,下了雪,将圣诞的气息衬得更繁华鲜明。麦当劳里人山人海,我们等了好久,才有一桌人起身。我一个箭步冲上去,抢到座位。朱樱伸手招呼:“小姐,清一下台子。”

一位女服务员疾步走过来,远远地,只见她略显单薄的身影,走路时上身稍稍地前倾,竟是十分熟悉。她走到我们面前,我在顷刻间呆住了:妈!

怎么会是妈?她现在,她现在应该在上班呀。

陡然地,我记得在厨房幽暗的灯光下妈黯然的脸色,难道,难道妈在骗我?妈,下岗了?

妈也在同时看见了我,刹那间,她的眼睛瞪得很大,死死地、用力地盯着我。我看见惊骇、怀疑、失望、痛楚,仿佛巨浪滔天,从妈的眼中无穷无尽地涌出。她的身体轻轻地摇晃了一下。

然而,妈什么也没说,只是低下头去,利索地开始清理桌子上的残杯剩盘。我想喊她“妈”,可是也许是因为震惊,也许因为周围喧闹的人流,也许只是因为朱樱,我竟一个字也说不出口,只是,愣愣地看着她。

她再也没有看我一眼,径直到邻台清理。把废物倒入垃圾桶里时,她停一停,伸手印一印额头。当她再一次从我身边走过时,我看见,在她的手臂上,那烙痕一样清晰的,分明是一道长长的泪痕……

哦,那个周末的晚上,是不是,妈本来是准备告诉我她下岗的消息?是什么让她改了口,是不忍见我那一刻的紧张与焦灼吗?我紧紧地握着袋中的纸币,第一次知道了钱的分量。

许多成长岁月中我记得的事,像旋风一样涌上来又翻下去,我竟不能止住自己的泪。泪光里我看见朱樱,她娟秀的眉眼,精荚的黑皮衣衬出她的玲珑腰身,忽然知道:对于我来说,爱情是太奢侈的游戏……

大二开学的时候,我把一叠钱放在妈的面前,说:“有我的奖学金,也有我当家教、打工的钱。妈,下个学期的学费我自己付,您以后不要那么辛苦了。”

妈久久地看着那些钱,双手突然蒙住了脸。她,哭了。