某小儿经检查:体重10.8kg,身长 80cm,头围47cm,胸围47cm,上

题型:单项选择题

问题:

某小儿经检查:体重10.8kg,身长 80cm,头围47cm,胸围47cm,上部量42cm。前囟门已闭。出牙11颗。

根据以上情况,您估计该小儿最可能接近以下哪个年龄

A.8个月

B.12个月

C.18个月

D.24个月

E.28个月

考点:药学职称考试中药师基础知识中级主管中药师基础知识7
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钢在加热时,影响奥氏体转变的因素有()、()、()、()和().

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一位研究者发现具有低水平免疫系统的人在心里健康测试中的得分比具有高免疫系统的人分数低。这位研究者的结论是:免疫系统不仅能防御身体疾病,也能防御精神疾病。 其实,这一因果联系是不成立的,以下哪项是对其最严重的质疑

A.该研究者的理论研究和所进行的实验在时间上不相一致

B.人的免疫系统与心理健康关系密切

C.一些具有高免疫系统的人,在心理测试中,与具有普通免疫系统的人得分不同

D.一般来说,强烈的压力首先引起精神疾病,然后降低免疫系统的活动水平

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分税制的重要标志之一,就是对地方收支的计算采用()。

A.基数法

B.定比法

C.因素法

D.递增法

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人们在家里度过的时间平均在60%以上.香烟烟雾是家庭居室的主要污染源.在此次受调查的家庭中,有近80%的家庭里有成员吸烟.也就是说有近80%的儿童在被动吸烟.父亲吸烟的家庭中,母亲患咳嗽的比例要比不吸烟家庭高.专家说,如果主动吸烟者对自己的呼吸健康有中度或高度危害的话,他对孩子的危害则是中度的,对配偶的危害稍轻.家庭燃煤产生的污染和烹调时的油烟是中国家庭室内空气污染的又一污染源.家庭燃煤产生可吸入颗粒物、二氧化硫、甲醛、挥发性有机物、多环芳烃等多种污染物,在冬天污染会更加严重.有的室内污染浓度要比室外更高.

(1)分析居家的空气质量与人们健康的关系.

(2)你认为在生活中我们要怎样做才能减少居室内不良空气对人们健康的影响?

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Small, Imperfectly Formed


One has to look a long time for an American politician of any political stripe who has failed to laud small businesses. Still, many have little clue as to what makes such businesses succeed or fail.
Federal agencies aimed at helping small business, such as the Small Business Administration and the Minority Business Development Agency, have been around for half a century, yet persistent differences remain between the performance of businesses founded by white, male entrepreneurs and the rest. Blacks are less likely to be self-employed, for example, and when they are their businesses, on average, have lower sales and profits than do their white-or Asian-owned counterparts. If researchers could explain the causes of these differences, policy-makers could (at least in theory) supply small businesses with more useful help.
Two researchers for the Census Bureau’s Centre for Economic Studies, Ron Jarmin and C.J. Krizan, recently published a working paper attempting to understand demographic differences behind small businesses’ success and failure. They concentrated on the years 2002 to 2005, with three databases at their disposal: the Survey of Business Owners, conducted every five years; the Longitudinal Foreign Trade Transaction Database, which includes every US export transaction between 1992 and 2005; and a database co-developed by Mr. Jarmin, which allowed the authors to track whether the owners of the firms in their sample had prior experience being their own bosses. By drawing from on the power of the Census’s data collection efforts, the authors hoped to create a more nuanced picture of business survival.
Some of their findings were not terribly surprising. A firm’s chances of survival, regardless of the race or sex of its owner, decreased in poorer areas; and the better the education of the founder, the more likely it was to succeed. Businesses owned by Asians, Hispanics, or Pacific Islanders were more likely to be exporters. Older entrepreneurs were more likely to use personal savings to start their businesses; younger owners were more likely to have to close up shop during the study period than were their middle-aged rivals.
However, the data also confirmed that black-and female-owned businesses tended to perform worse than the average. They were also less likely to have been funded by bank loans. Still, the businesses that survived, regardless of the owner’s race, tended to add employees at similar rates. Furthermore, after controlling for factors such as the education and race of the owner, there was no statistically significant difference in firms’ abilities to expand into different locations. Finally, black entrepreneurs were more likely to have a history of self-employment than their white counterparts. Messrs Jarmin and Krizan’s paper is not the first to suggest that black entrepreneurs, less likely to have other business owners in their family or personal networks, tend to "start small" when they venture out on their own.
Most researchers get to end their papers by speculating, usually without much fear of consequence, as to the policy implications of their work. The authors of this paper, not wishing to imply that the Census Bureau might have policy opinions, declined to do so. But the reader can make some guesses. One is that mentorship programmes may be particularly useful for promoting entrepreneurship among blacks. Another is that reaching out to businesses based on the owner’s race might be less useful than supporting businesses in poorer areas. And small businesses of all stripes would be helped by improving that other institution lauded by politicians: America’s education system.

Most politicians in the U.S. ______.
A. have had some experiences in running a small business
B. have made great efforts in helping small businesses
C. have paid little attention to small businesses
D. have spoken highly of small businesses

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