搜题请搜索小程序“爱下问搜题”
问题 单项选择题 共用题干题

饱和脂肪酸与冠心病的发病密切相关，可增加中、老年人患心血管疾病的危险性。

WHO在膳食目标中建议，饱和脂肪的能量百分比不能超过膳食总能量的（）。

A.10%

B.15%

C.20%

D.25%

E.30%

答案

参考答案：A

解析：1.富含饱和脂肪酸的食物有椰子油。2.饱和脂肪的能量百分比不能超过膳食总能量的10%。

填空题

Part 4


Questions 26-45


·Read the following passage and decide which answer best fits each space.
·For questions 26-45, mark one letter A, B, C or D on the Answer Sheet.
Participation (26) high school sports is not a constitutional right. (27) , it is a privilege, paid for by taxpayers, open to students who promise to (28) certain conduct requirements on and off the field. One of these promises is to (29) from using drugs. Drug use is a serious problem among high school students. Studies show that as many as 500, 000 high school students use muscle-pumping, life-destroying substances such as steroids. Many more use illegal drugs, (30) cause discipline problems and (31) the stage for lifelong (32) .
Drug testing works to (33) and identify use. That is why drug testing is required to compete in the Olympics, the National Collegiate Athletic Association and the National Football League. (34) drug testing was instituted by these organizations, use of performance- (35) drugs has been greatly reduced. We should want (36) in schools.
Indeed, many athletes (37) testing programs, and no wonder. Without testing, athletes have to choose between drug use and a competitive disadvantage (38) the field.
Those who challenge the need for drug testing may be forgetting (39) it is like be an adolescent. Peer pressure is enormous, and one of the few effective counter-weights is the fear of being caught. More importantly, once drug use is (40) , a school can (41) to the student before he or she gets addicted or arrested.
For 25 years, public schools (42) by federal judges and civil libertarians, with results everyone can see. It is time (43) decisions on how to run public schools locally (44) officials. There is nothing unconstitutional about asking those who gain the advantages of school-sponsored athletics to contribute to the safety of other players, the integrity of the game and their own well-being. The Supreme Court should leave these programs (45) .

A．on

B．at

C．in

D．of
查看答案
单项选择题

肺静脉血栓脱落致脑动脉阻塞的现象称为()

A．血栓再通

B．血栓机化

C．血栓软化

D．血栓钙化

E．血栓栓塞
查看答案