题干

在式子:①(x﹣1)0,②x-1,③
1
x
-
1
中,x可以取1的是(  )

A:①和②

B:只有①

C:只有②

D:只有③

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答案(点此获取答案解析)

C

同类题3

阅读下文,回答问题

暖雪

傅昌尧

    接到丈夫的电话,琴几乎晕倒。

    丈夫是个逃犯,在外逃亡已经整整六年了。

    (A)琴用厚厚的记忆擦洗着那声音,确认电话那头是丈夫,她终于哭了:“你在哪里?”

    “我回来了,我太想你了!等天黑我就回家,给我熬一锅羊肉汤……”话没说完,电话就挂了。琴知道丈夫一直不敢给她打电话,因为公安追得紧,隔三差五的,还有警察上门查问。眼下,要过年了,警察也要过年不是?

    琴翻翻日历,惊呆了,发现今天竟是大年三十!丈夫逃亡的这些年,琴成天恍恍惚惚,她几乎忘了岁序更迭与季节转换。丈夫犯法,有一半的原因是为了她,这也是她苦苦等待的理由。

    琴赶紧去菜市场买羊肉,可市场上不仅没了羊肉,连蔬菜也很少了,谁家到大年三十才准备年货?琴面对空荡荡的市场,急得哭起来。

    忽然,她看见迎面一个骑自行车的人,车篓里分明放着一只羊腿,扎着红布条,那么醒目可人。琴不顾一切地冲上去,“扑通”跪在那人面前。

    骑车人吓坏了:“你……干什么?”

    琴掏出一沓儿钱:“求求您!把这只羊腿让给我吧!”

    那人一愣:“这是单位发的年货,我去孝敬丈母娘的,怎么好给你?”

    琴哽咽道:“我丈夫患了绝症,快不行了,就想喝口羊肉汤,这是他最后一个要求了……”天上开始下雪,一粒粒很硬。

    那人看着琴,怔了片刻,然后将羊腿递到她手里,骑车飞驰而去,连钱也没要。

    午夜,春节晚会如火如荼地进行着,琴眼睛在电视上,心在外面,耳朵在门上……

    “嗒嗒!”琴扑到门口,拉开门。

    浑身是雪的丈夫被一屋子温暖醉倒……春天提前在这对夫妻的身心里回荡,并久久徘徊……

    天不知不觉地亮了。

    “琴,我得走了。”

    琴一把抱住丈夫:“不!再陪陪我……”

    “不行,警察会来的!”

    琴哽咽起来:“这样逃到何时为止?”

    “逃一天是一天,总比送死好!”

    琴说:“去自首吧,看看会不会减刑?”

    “不可能!我捅的是警察,警察会给我减刑?”

    琴说:“现在和过去不一样了,警察也变了……再说,对方也有过错嘛……”

    “我不信……我走了!”丈夫走到门口。

    (B)大年初一的早晨异常宁静,一夜的欢乐都沉淀在厚厚的积雪里,世界安静、温馨得那么美丽。门轻轻打开,夫妻俩惊呆了:门廊下站着两个裹着大衣的陌生人,一夜的寒冷使他们脸色铁青。

    “新年好!”一个年龄较大的冲他们夫妻笑着一点头,清鼻涕跟着甩了下来。

    琴和丈夫似乎意识到什么,但他们不相信会是警察,而且在门外等了一夜!虽然门廊下满天星般的烟蒂证明他们确实呆了一夜。

    那个年轻的,哆嗦着双手,从怀里抠出一张拘捕证,说:“我们是西城分局的刑警……”

    年老的掏出对讲机:“小王,把车开到对面马路上,记着,大过年的不要鸣笛!”

    琴不知为什么,心里一热。

    丈夫忽然“扑通”跪下:“谢谢你们给了我一个美好的夜晚!我……伏罪……”

(选自《美文阅读大师》,有删改)

同类题5

阅读理解

    Do you think you're green? You're a totally modern citizen, aren't you? You keep your bottles and take them to the bottle bank. You have a black bin and a green bin, one for general waste and one for recyclable waste. Your car uses lead—free petrol. You use the same plastic bag every time you go to the supermarket. Maybe you even cycle to work from time to time. You are playing your part; you are green and environment—friendly. Well, I've got news for you:

    YOU ARE NOT DOING ENOUGH!

    If you don't believe me, look at these facts. Trust me, they're from a BBC website.

    On average every person in the UK throws away their own body weight in rubbish every seven weeks.

    Every year, the average dustbin contains enough unused energy for 500 hot baths, 3,500 hot showers or 5,000 hours of television.

    Every UK household produces over one tonne of rubbish every year.

    If all the aluminium drink cans sold in the UK were recycled, there would be 14 million fewer full dustbins per year.

    Just one recycled aluminium can saves enough energy to run a television for three hours!

    At Christmas over 83 square kilometres of wrapping paper is thrown in the bin.

    Almost three billion nappies (used for baby) are thrown away in the UK every year. 90% of these are buried and take hundreds of years to disappear.

    Have I made you believe that you need to do more? No? OK, here are one or two more facts.

    Recycling just one plastic bottle saves enough energy to power a light bulb for six hours.

    Collecting dustbins and cleaning streets costs £1. 6 billion per year.

    Surely you must believe me now. You need to do more. The good news is that there is some— thing else you can do.