题干

在食品安全备受关注的时下,人们对餐桌上的蔬菜安全问题也越来越关心。有机小冬瓜每500克3.9元,有机苦瓜每500克5元,价格是普通菜的3~5倍,普通长茄子的售价每500克1.88元,而有机长茄子每500克22.98元,价格相差11倍。尽管有机菜价格贵一些,但吃得健康比什么都划算。对此我们的正确认识是(  )
①人们的消费行为受消费心理的影响            
②供求关系决定价格,符合价值规律
③不符合勤俭节约、艰苦奋斗的原则            
④贯彻了保护环境,绿色消费的原则

A:①②

B:③④

C:②③

D:①④

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D

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    Eyesight plays a very important role in our daily life. Every waking moment, the eyes are working to see the world around us. Over forty percent of Americans worry about losing eyesight, but it's easy to include steps into our daily life to ensure healthy eyes. Here are five suggestions for a lifetime of healthy eyesight:

    ●Schedule yearly exams.____Experts advise parents to bring babies 6 to 12 months of age to the doctor for a careful check. The good news is that millions of children now can have yearly eye exams and following treatment, including eyeglasses.

    ●Protect against UV rays (紫外线). Long-term stay in the sun creates risk to your eyes. No matter what the season is, it's extremely important to wear sunglasses.____

    ●Give your eyes a break. Two-thirds of Americans spend up to seven hours a day using computers or other digital products.____Experts recommend that people practice the 20/20/20 rule: every 20 minutes, take a 20-second break and look at something 20 feet away.

    ●____As part of a healthy diet, eat more fruits and vegetables each day. Vitamins (维生素) C and E help protect eyesight and promote eye health.

    ●Practice safe wear and care of contact lenses (隐形眼镜). Many Americans use contact lenses to improve their eyesight. While some follow the medical guidance for wearing contact lenses, many are breaking the rules and putting their eyesight at risk.____Otherwise, you may have problems such as red eyes, pain in the eyes, or a more serious condition.

A. Eat your greens.

B. Eye care should begin early in life.

C. They can properly protect your eyes.

D. Stay in good shape by taking more vitamins.

E. Parents usually don't care about their own eyesight.

F. Always follow the doctor's advice for appropriate wear.

G. This frequent eye activity increases the risk for eye tiredness.

同类题2

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捡烂纸的老头

汪曾祺

       烤肉刘早就不卖烤肉了,不过虎坊桥一带的人都还叫它烤肉刘。这是一家平民化的回民馆子,地方不小,东西实惠,卖大锅菜。炒辣豆腐,炒豆角,炒蒜苗,炒洋白菜。比较贵一点是黄焖羊肉,也就是块儿来钱一小碗,在后面做得了,用脸盆端出来,倒在几个深深的铁罐里,下面用微火煨着,倒总是温和的。有时也卖小勺炒菜:大葱炮羊肉,干炸丸子,它似蜜……主食有米饭、馒头、芝麻烧饼、罗丝转;卖面条,浇炸酱、浇卤。夏天卖麻酱面。卖馅儿饼。烙饼的炉紧贴着门脸儿,一进门就听到饼铛里的油吱吱喳喳地响,饼香扑鼻,很诱人。

      烤肉刘的买卖不错,一到饭口,尤其是中午,人总是满的。附近有几个小工厂,厂里没有食堂,烤肉刘就是他们的食堂。工人们都在壮年,能吃,馅饼至少得来五个(半斤),一瓶啤酒,二两白的。女工们则多半是拿一个饭盒来,买馅饼,或炒豆腐、花卷,带到车间里去吃。有一些退休的职工,不爱吃家里的饭,爱上烤肉刘来吃“野食”,爱吃什么要点儿什么。有一个文质彬彬的主儿,原来当会计,他每天都到烤肉刘这儿来。他和家里人说定,每天两块钱的“挑费”都扔在这儿。有一个煤站的副经理,现在也还参加劳动,手指甲缝都是黑的。他在烤肉刘吃了十来年了。他来了,没座位,服务员即刻从后面把他们自己坐的凳子搬出一张来,把他安排在一个旮旯里。有炮肉,他总是来一盘炮肉,仨烧饼,二两酒。给他炮的这一盘肉,够别人的两盘,因为烤肉刘指着他保证用煤。这些,都是老主顾。还有一些流动客人,有东北的,山西的,保定的,石家庄的。大包小包,五颜六色,男人用手指甲剔牙,女人敞开怀喂奶。

      有一个人是每天必到的,午晚两餐,都在这里。这条街上的人都认识他,是个捡烂纸的。他穿得很破烂,总是一件油乎乎的烂棉袄,腰里系一根烂麻绳,没有衬衣。脸上说不清是什么颜色,好像是浅黄的。说不清有多大岁数,六十几?七十几?一嘴牙七长八短,残缺不全。你吃点儿软和的花卷、面条,不好么?不,他总是要三个烧饼,歪着脑袋努力地啃噬。烧饼吃完,站起身子,找一个别人用过的碗,自言自语(他可不在乎这个):“跟他们寻一口面汤。”喝了面汤:“回见。”没人理他,因为不知道他是向谁说的。

      一天,他和几个小伙子一桌,一个小伙子看了他一眼,跟同伴小声说了句什么。他多了心:“你说谁哪?”小伙子没有理他,他放下烧饼,跑到店堂当间:“出来!出来!”这是要打架。北京人过去打架,都到当街去打,不在店铺里打,免得损坏人家的东西搅了人家的买卖。“出来!出来!”是叫阵,没人劝。压根儿就没人注意他。打架?这么个糟老头子?这老头可真是糟,从里糟到外。这几个小伙子,随便哪一个,出去一拳准把他揍趴下。小伙子们看看他,不理他。

       这么个糟老头子想打架,是真的吗?他会打架吗?年轻的时候打过架吗?看样子,他没打过架,他哪里是耍胳膊的人哪!他这是干什么?虚张声势?也说不上,无声势可言。没有人把他当一回事。

       没人理他,他悻悻地回到座位上,把没吃完的烧饼很费劲地啃完了。情绪已经平复下来——本来也没有多大情绪。“跟他们寻口汤去。”喝了两口面汤:“回见!”

       有几天没看见捡烂纸的老头了,听煤站的副经理说,他死了。死后,在他的破席子底下发现了八千多块钱,一沓一沓,用麻筋捆得很整齐。

他攒下这些钱干什么?