《压力容器安全技术监察规程》规定：压力容器耐压试验过程中（）带压紧固螺栓或向受压元件

细胞总数减少，多数是由（）细胞减少引起的

A、中性粒细胞

B、酸性粒细胞

C、淋巴细胞

D、单核细胞

穿山甲与王不留行的共同功效是（）。

A.活血

B.调经

C.下乳

D.消肿排脓

E.利水通淋

甲于2010年11月18日将自有的一辆“奥迪”牌汽车投保了机动车车辆保险及机动车交通事故强制保险，保险金额为12万元，乙担任驾驶员。2010年12月20日该车在行驶途中不慎坠入悬崖下的河水中，乙受重伤。故事发生后，甲称该车无法打捞，要求保险公司按全部损失赔偿。经查，该汽车当时价值为12万元。保险公司向甲赔偿了保险金12万元。事后甲组织人力将车打捞上来并卖得价款5万元，其中支付打捞费1万元。保险公司很快得知此事，要求甲返还卖车所得5万元价款。
问：
(1)保险公司的要求是否应当予以支持？为什么？
(2)保险公司是否应当赔偿乙所受的伤害？为什么？

If teens could reduce the salt they take in every day by 3,000 milligrams (mg), they would cut their risk of heart disease and stroke(中风) greatly in adulthood, researchers say.

Based on the results of a computer modeling analysis, researchers found that a 3,000 mg reduction in sodium(钠) by teenagers could reduce hypertension by 30 percent to 43 percent when they become adults.

Hypertension, or high blood pressure, is a common condition that may have no symptoms for years, but can eventually cause serious health conditions, including heart attack and stroke.

Other benefits over time as teens hit 50 years of age include a 7-12 percent reduction in coronary heart disease(冠心病), an 8-14 percent reduction in heart attacks, and a 5-8 percent reduction in stroke.

Fast food typically contains too much sodium. One bag of Nacho Cheese Doritos has 310 milligrams. Pizza is one of the biggest problems for teens when it comes to sodium, according to data from the National Center for Health Statistics.

“The additional benefit of lower salt intake early is that we can hopefully change the expectations of how food should taste, ideally to something slightly less salty,” says Dr. Kirsten Bibbins-Domingo, the lead author of the study and associate professor of medicine at the University of California, San Francisco.

“Most of the salt we eat is not from our salt shaker(盐瓶), but salt that is already added in food that we eat.” she added.

小题1:Which is a benefit of a low sodium diet according to the text?

A．No risk of heart disease.

B．Smaller chance of stroke.

C．Low blood pressure.

D．Slightly more heart attacks.小题2:According to the text, 3,000 mg less salt intake daily will reduce hypertension by ________ in adulthood.

A．7%-12%

B．8%-14%

C．30%-43%

D．5%-8%小题3:What does Dr Kirsten Bibbins-Domingo mean in the last two paragraphs?

A．A lower sodium diet can get teenagers used to less salty food.

B．A good eating habit can help teens have less junk food.

C．Teens should avoid pizzas and other salty foods.

D．We can add more salt from our salt shaker to the food.小题4:Which of the following can be the best title for the text?

A．Teens Cutting Salt for Healthier Adulthood

B．Diet and Health

C．Sodium Brings Health Concerns

D．A Cause of Hypertension

某种电脑病毒传播非常快，如果一台电脑被感染，经过两轮感染后就会有81台电脑被感染。请问经过三轮感染后，被感染的电脑有多少台

A．648
B．716
C．729
D．742