有7个数的平均数为8,如果把其中一个数改为1,这时7个数的平均数是7,这个被改动

题型:解答题

问题:

有7个数的平均数为8,如果把其中一个数改为1,这时7个数的平均数是7,这个被改动数原来是几?

考点:整数的四则混合运算及应用题
题型:解答题

It’s becoming something of a joke along the Maine-Canada border. So many busloads of retired people crisscross the line looking for affordable drugs that the roadside stands should advertise, "Lobsters. Blueberries. Lipitor. Coumalin. " Except, of course, that such a market in prescription drugs would be illegal.

These senior long-distance shopping sprees fall in a legal gray zone. But as long as people cross the border with prescriptions from a physician and have them filled for no more than a three-month supply for personal use, customs and other federal officials leave them alone. The trip might be tiring, but people can save an average of 60 percent on the cost of their prescription drugs. For some, that’s the difference between taking the drugs or doing without. "The last bus trip I was on six months ago had 25 seniors," says Chellie Pingree, former Maine state senator and now president of Common Cause. "Those 25 people saved $19,000 on their supplies of drugs. " Pingree sponsored Maine RX, which authorizes a discounted price on drugs for Maine residents who lack insurance coverage. The law was challenged by drug companies but recently upheld by the U. S. Supreme Court. It hasn’t yet taken effect.

Figuring out ways to spend less on prescription drugs has become a multifaceted national movement of consumers, largely senior citizens. The prescription drug bill in America is $160 billion annually, and people over 65 fill five times as many prescriptions as working Americans on average. "But they do it on health benefits that are half as good and on incomes that are half as large. " says Richard Evans, senior analyst at Sanford C. Bernstein, an investment research firm. What’s more, seniors account for 20 percent of the voting public.

It’s little wonder that the May 19 Supreme Court ruling got the attention of drug manufacturers and politicians across the country. The often-over-looked state of 1.3 million tucked in the northeast corner of the country became David to the pharmaceutical industry’s Goliath. The face-off began three years ago when state legislators like Pingree began questioning why Maine’s elderly population had to take all those bus trips.

We can learn from the second paragraph that ().

A. people can buy as many drugs for personal use

B. the cross-border drug shopping has been out of the federal control

C. Chellie Pingree used to be one of the cross-border shoppers for drugs

D. the cross-border shopping is the only way for some Americans to get drugs

题型:解答题

行同一段路,甲要20分钟,乙要18分钟,甲的速度比乙的速度慢百分之几?

题型:解答题

公估是"公"与"估"两种行为的结合,"估"是指()的行为。

A.估计、保价、估量

B.依法评判

C.公平推测

D.诚实评价

题型:解答题

保险单是载明保险合同的文件,按照保险惯例,保险单应载明的事项包括()

A.被保险人的姓名

B.保险期间

C.保险标的物

D.承保的危险

E.保险金额

题型:解答题

5个月婴儿,生后人工喂养,经常腹泻,营养不良Ⅱ度,5d前皮肤有脓疖,近3d发热、咳嗽。昨起气急,予红霉素治疗。今门诊体检发现两肺有中、细水泡音,诊断为金黄色葡萄球菌性肺炎住院。入院时肛门温度38.5℃,呼吸55/min,口周青紫,继续用红霉素并加用庆大霉素。下述各点中哪一点是不对的()

A.住院第2天体温降至35.5℃(未用退热剂),呼吸55/min,血白细胞计数3.5×10/L,中性粒细胞0.68,淋巴细胞0.32,说明病情得到初步控制

B.本病好发于胸膜下肺组织,以广泛的出血、坏死及多个脓肿形成为特点

C.当患儿出现气急加重、呼吸音减低时要考虑并发脓胸或脓气胸

D.若并发肺大泡,一般不需外科治疗

E.经治疗,体温正常,胸片示病变吸收,不应立即停药

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