油量计算中的石油体积系数K20是指（）。A．标准油温时的体积与油温为℃时的石油体积之

脏器系数是（）。

A.某个脏器的重量与体重的比值

B.某个脏器的湿重与单位体重的比值，表示为脏器质量（g）/体重（100g）

C.某个脏器的重量与该组动物平均体重的比值

D.用脏器重量除以动物体重后所得到的数值

E.通常是每1000g体重中某脏器所占的质量，表示为脏器质量（g）／体重（1000g）

简述配重用原材料都有那些？原材料验收发现不合格时的处理办法？

把物业租赁分为住宅租赁和非住宅租赁，这是按( )划分租赁市场。

A．物业用途
B．租赁房屋的性质
C．物业租赁期限
D．承租人的国籍

臁疮的病因病机是

A．久病气血亏虚，不能营养肌肤
B．气血失和，经脉阻滞，气血凝结
C．湿热下注，瘀血凝滞经络
D．气血失和，风寒痰浊凝聚
E．寒湿凝聚经络，闭塞不通，气血运行不畅

Less education, income linked to obesity in women, not men

Women who are better educated and live in households that are middle-income or above are less likely to be obese than women who are less educated and live in the lowest income households, new government research shows.
Among men, there is not a statistically significant (26) in obesity based on income and very (27) difference based on education, the data show.
(28) , about one in three U.S. adults-almost 73 million people-are obese, which is (29) 30 or more pounds over a (30) weight. Extra weight raises the (31) of diabetes, heart disease, some types of cancer and other (32) .
"There is a relationship between obesity and income, but it’s not a (33) story," says Cynthia Ogden, an epidemiologist with the National Center for Health Statistics, part of the Centers for Disease Control and Prevention.
"When looking at these two (34) of socioeconomic status-income and education-their (35) is greater on women than men," she says.
Jennifer Lovejoy, president of the Obesity Society, says that (36) -income women may be more likely to become obese because of environmental (37) such as lack of access to safe places to do physical activity and easy access to fast food.
Among the findings:
·29% of women who live in households with an annual income of $77,000 or more for a family of four are obese in opposition (38) 42% of women who live in households with an annual income below $29,000 for a family of four.
·23% of women with a college degree are obese, significantly less than the 42% of women with (39) than a high school education.
·33% of men who live in households with an annual income of $77,000 or more for a family of four are obese, (40) 29% of men who live in households with an annual income below $29,000 for a family of four are obese. This difference is not considered statistically (41) .
The analysis is based on (42) from the National Health and Nutrition Examination Survey, which is considered the gold (43) for evaluating obesity because it is a(an) (44) survey of people whose weight and height are actually (45) rather than being self-reported.

A. since B. so C. though D. while