货币时间价值产生的原因不包括（）。A、资源稀缺性的体现B、流通中货币的固有特征C、人

◎÷32=15…○，被除数最大是（　　）

A．480

B．495

C．512

D．511

男性，34岁，农民。频繁腹泻及呕吐1天来诊。约20余次，水样便，伴腓肠肌抽痛，无明显腹痛。体检：神志清，明显脱水征，BP8／5.3kPa（0／40mmHg），血浆比重1.035，红细胞压积0.60（60%），WBC18×10⁹／L，大便光镜检WBC0～2／HP，经大便悬滴及涂片检查初步诊断为副霍乱。

病人经补液及抗生素治疗，症状消失，病情稳定，病人因经济困难，要求出院，解除隔离出院标准是（）。

A.症状消失后至少10天，大便培养连续3次阴性

B.症状消失后至少1周，大便培养连续3次阴性

C.症状消失后至少2周，大便培养连续3次阴性

D.症状消失后至少2周，大便培养连续2次阴性

E.症状消失后至少3周，大便培养连续3次阴性

在清除表层损坏较深（5～50cm）且面积较大的混凝土时，宜采用（）。

A、人工凿除

B、人工结合风镐凿除

C、小型爆破为主，结合人工凿除

D、机械切割凿除

     Christopher Thomas, 27, was a writer by night and a teacher by day when he noticed he was

always tired and was losing weight fast. Diagnosed with diabetes(糖尿病), Thomas would need to

inject himself with insulin(胰岛素) three times a day for the rest of his life or risk nerve damage,

blindness, and even death.   And if that weren't bad enough, he had no health insurance.

     After a month of feeling upset, Thomas decided he'd better find a way to fight back. He left Canton,

Michigan for New York, got a job waiting tables, nicknamed himself the Diabetic Rockstar, and

created diabeticrockstar.com, a free online community for diabetics and their loved ones-a place where

over 1,100 people share personal stories, information, and resources.

     Jason Swencki's son, Kody, was diagnosed with diabetes at six. Father and son visit the online

children's forums(论坛) together most evenings. "Kody gets so excited, writing to kids from all over," 

says Swencki, one of the site's volunteers. "They know what he's going through, so he doesn't feel

alone."

     Kody is anything but alone: Diabetes is now the seventh leading cause of death in the United States,

with 24 million diagnosed cases. And more people are being diagnosed at younger ages.

     These days, Thomas's main focus is his charity(慈善机构), Fight It, which provides medicines and

supplies to people-225 to date-who can't afford a diabetic's huge expenses. Fight-it.org has raised

about $ 23,000-in products and in cash. In May, Thomas will hold the first annual Diabetic Rockstar

Festival in the Caribbean.

     Even with a staff of 22 volunteers, Thomas often devotes up to 50 hours a week to his cause, while

still doing his fulltime job waiting tables. "Of the diabetes charities out there, most are putting money into

finding a cure, " says Bentley Gubar, one of Rockstar's original members. "But Christopher is the only

person I know saying people need help now."

1. Which of the following is TRUE of Christopher Thomas?

A. He needs to go to the doctor every day.

B. He studies the leading cause of diabetes.

C. He has a positive attitude to this disease.

D. He encourages diabetics by writing articles.

2. Diabeticrockstar.com was created for ________.

A. diabetics to communicate

B. volunteers to find jobs

C. children to amuse themselves

D. rock stars to share resources

3. According to the text, Kody ________.

A. feels lonely because of his illness

B. benefits from diabeticrockstar.com

C. helps create the online kid's forums

D. writes children's stories online

生命神圣论仍然是现代医学强调的生命道德。为什么？