(Question)
Read the article and select the best answer. Article: Adam Smith was the first person to see the importance of the division of the labor. He gave us an example of the process by which pins were made in England. One man draws out the wire, another strengthens it, a third cuts it, a fourth points it, and a fifth gives it a head. Just to make the head requires two or three different operations. The work of making pins is divided into about eighteen different operations, which in some factories are all performed by different people, though in others the same man will sometimes perform two or three of them. Ten men, Smith said, in this way, turned out twelve pounds of pins a day or about 4,800 pins a worker. But if all of them had worked separately and independently without division of labor, they certainly could not have made twenty pins in a day and not even one. There can be no doubt that division of labor is an efficient way of organizing work. Fewer people can make more pins. Adam Smith saw this, but he also took it for granted that the division of labor is itself responsible for economic growth and development and it accounts for the difference between expanding economies and those that stand still. In fact, the division of labor adds nothing new, and it only enables people to produce more of what they already have. Question: According to the passage, Adam Smith was the first person to _ . Options: A: take advantage of the physical labor B: introduce the division of labor into England C: understand the effects of the division of labor D: explain the causes of the division of labor
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C

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Read the article and select the best answer. Article: People are interested in eating raw foods or whole foods partly because eating these types of food reduces the risk of acid accumulation in our body . Raw and whole foods are usually digested more efficiently than cooked and processed foods . When we cook foods , we destroy the natural enzymes that are part of the food in its raw form . These enzymes were intended by nature to help us digest the food . When we consume food without these natural enzymes , our bodies either digest the food improperly or allow too many nutrients to be absorbed into the bloodstream . In both cases , the result is obesity . When too many nutrients are absorbed at once , the body grows fat . Processed foods contain chemical elements , which might confuse the appetite system that tells us when we've had enough to eat ; as a result , people often overeat . Processed foods also upset the digestive cycle . The body will either identify these foods as allergens and then store them safely away from the organs as fat , or the remains of undigested food will become acidic and enter the bloodstream as acid waste , which will stick to the blood vessel walls and block the passage of vital oxygen and nutrients heading for the body's cells . The body's metabolism becomes inactive , and the result is weight gain and obesity . To stop this _ circle in its tracks , people need to consume food and supplements that will balance the acid already accumulated in body . Eating the right types of raw and whole foods can help . It's also important to restore our enzyme balance . We need to identify and avoid the foods that cause acid accumulation and consume the foods that increase enzyme production . If we truly want to change and help our body heal itself , we need to take an active approach . Question: To change and help our body heal itself , we need to _ . Options: A: consume enough acid foods B: identify enzyme production C: avoid restoring our enzyme balance D: eat the right types of raw and whole foods
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D

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Read the article and select the best answer. Article: If you live in America in the 21stcentury you'll probably have to listen to a lot of people tell you how busy they are. It's become the default response when you ask anyone how they are doing:"Busy!""Crazy busy!".It is,pretty obviously,a boast disguised as a complaint. And the common response is a kind of congratulation:"That's a good problem to have,"or"Better than the opposite." Notice it isn't generally people pulling back-to-back shifts in the ICU or commuting by bus to three minimum-wage jobs who tell you how busy they are.What those people are is not busy but tired.Exhausted!Dead on their feet.It's almost always people whose busyness is purely self-imposed:work and obligations they've taken on voluntarily,classes and activities they've "encouraged" their kids to participate in.They're busy because of their own ambition or drive or anxiety,because they're addicted to busyness and dread that they might have to face in _ absence. Almost everyone I know is busy. They feel anxious and guilty when they aren't either working or doing something to promote their work.It's something they have chosen.Busyness serves as a kind of existential reassurance ,a measure against emptiness,obviously your life cannot possibly be silly or tiny or meaningless if you are so busy,completely booked,in demand every hour of the day. Idleness is not just a vacation.It is as necessary to the brain as vitamin D is to the body,and deprived of it we suffer a mental affliction as ugly as rickets.The space and quiet that idleness provides is a necessary condition for standing back from life and seeing it whole,for making unexpected connections and waiting for the wild summer lightning strikes of inspiration."Idle dreaming is often the essence of what we do,"wrote Thomas Pynchon.Archimedes' "Eureka"in the bath, Newton's apple :history is full of stories of inspirations that come in idle moments. Question: The writer mentions Archimedes' "Eureka"and Newton's apple to show that _ . Options: A: history is full of interesting stories B: Archimedes and Newton were very busy, so they made great discoveries C: people may get inspiration when they are idle D: inspirations come from hard work
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C