西瓜瓤长一团一团的,是滥施农药的结果。

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问题:

西瓜瓤长一团一团的,是滥施农药的结果。

考点:全民科学素质知识竞赛全民科学素质知识竞赛题库
题型:判断题

根据反垄断法律制度的规定,以低于成本的价格销售商品的下列情形中,不属于违法行为的有( )。

A.降价处理鲜活商品

B.因清偿债务降价销售商品

C.因转产降价销售商品

D.为推广新产品进行促销的

题型:判断题

患者,男性,28岁,农民,于12月20日因畏寒、发热3天入院。入院医疗诊断为"流行性出血热"。入院查体:体温35.9℃,血压8/5.5kPa,脉搏128次/分,呼吸40次/分,皮肤黏膜湿冷,肢端发绀,全身散在多个出血点,球结膜充血、水肿,肾区叩击痛明显。

此病人目前处于()

A.发热期

B.少尿期

C.低血压休克期

D.多尿期

E.恢复期

题型:判断题

肺癌的组织类型包括()

A.腺癌

B.鳞癌

C.小细胞癌

D.大细胞癌

E.印戒细胞癌

题型:判断题
Below are some smart ways to stay healthy suggested by some American experts.
Drink More Coffee
When was the last time you heard a doctor use the word miracle? Well, wake up and smell the coffee: “It’s amazing,” says liver specialist Sanjiv Chopra, MD, professor of medicine at Harvard Medical School. “Coffee is truly a lifesaving miracle drug.”
Though he says it’s still a “scientific mystery” how a simple cup of coffee works its wonders in the body, large epidemiological studies have repeatedly proved its astonishing benefits.
“Drink it black, or at most put a little skim milk in it” to minimize calories, Dr. Chopra recommends. He drinks at least four cups a day himself, though most people should limit themselves to two. And no, he jokes, “I’m not sponsored by Starbucks.”
Take a Walk for Your Memory
Aerobic (有氧运动的) exercise is good for your body, great for your mind, according to the latest research from brain-fitness pioneer Arthur Kramer. Every year, an area called the hippocampus, which is key to memory, shrinks by about 1 to 2 percent, increasing the risk of dementia (脑衰) as the years roll by. However, Kramer’s new investigations reveal that the hippocampi of adults who walked briskly for about 45 minutes three times a week grew by about 2 percent over the course of a year, preventing age-related shrinking.
It’s never too late to start exercising, Kramer says; volunteers in his research were between 55 and 80 years old and hadn’t exercised at all. And it doesn’t need to be backbreaking. “Anything that raises your heart rate seems to work,” he says. “Walking is fine. Just find something you like and do it.”
Early to Bed, Early to Eat
“Being a night owl might increase your waistline,” says sleep expert Michael Breus, PhD. People who stay up late and sleep late tend to eat more fast food and consume more of their calories after 8 p.m. than do normal sleepers.
“One of the easiest things that anyone on a diet can do to improve her results is go to bed and wake up at the same times every day,” Breus says. “This way, your body knows when to sleep and is much more efficient. Organize your eating, too, by trying to eat meals at the same times every day. Avoid eating after 8 p.m., and don’t miss morning meals by sleeping in.”
Use the 20-Second Rule
What’s the difference between having a goal and actually accomplishing it? Just 20 seconds, says positive-psychology specialist Shawn Achor. Researchers have learned that if we can cut 20 seconds off the startup time required for a task, we’re much more likely to follow through. So, for example, if you want to work out in the morning, place your shoes and exercise clothes next to your bed the night before. If you want to praise people more, put thank-you notes and a pen on your desk.
Imagine the Worst to Feel Better
Don’t count your blessings; subtract (扣除) them. “Consciously spend a few minutes imagining what your life would be like without the good things,” says Timothy Wilson, a psychologist at the University of Virginia. You’ll experience stronger feelings of love, gratitude, and happiness when you think about what life would be like without the people and things you love. “And they’ll seem surprising and special again,” he adds.
小题1: According to Sanjiv Chopra, most people should not drink more than ______ cups of coffee a day.
A.twoB.threeC.fourD.six
小题2:Which of the following may help people on a diet to improve their results?
A.Raising their heart rate.B.Taking a walk for their memory.
C.Eating at fixed times.D.Sleeping in every morning.
小题3:According to Shawn Achor, if people place their shoes and exercise clothes next to their bed at bedtime, they’re more likely to ______ the next morning.
A.do exerciseB.set a goal
C.cut 20 seconds offD.sleep 20 minutes more
小题4: Why should people spend a little time imagining their life without good things?
A.To experience surprise.B.To feel better.
C.To consider their own blessings.D.To prepare for the worst.
题型:判断题

在检修电气设备时,要悬挂()警示牌。

A、“有人作业、禁止送电”

B、停电

C、放电

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