[填空题]If your duration of study is more than 6 months, what else you need to apply to the Chinese Embassy

[填空题]If your duration of study is more than 6 months, what else you need to apply to the Chinese Embassy

[单项选择]In a study of more than 8,000 people using ten beaches on two of the Great Lakes, ecologists from the University of Toronto determined that the rate of respiratory and gastrointestinal illness among people who had been swimming was 69.6 per 1,000, whereas the respiratory and gastrointestinal illness rate among those who had not been swimming was only 29.5 per 1,000.
Which of the following conclusions can be most properly drawn from the data above
A. People tend to underestimate the risks of swimming in these lakes.
B. Respiratory and gastrointestinal illnesses occur at a higher rate as a result of swimming in either of these lakes than they do as a result of swimming in any other lake.
C. Illnesses of kinds other than respiratory and gastrointestinal are not likely to be associated with swimming in either of these lakes.
D. The association between swimming in these lakes and respiratory and gastrointestinal illness is some evidence for a causal relationship between them.
E. (E) A large percentage of the people who swim in these lakes are immune to the diseases that swimming may cause.

[单项选择]

W: You look like your father more than your mother.
M: I Prefer to look like my mother.

What does the man mean （　）
A. He thinks his mother looks better than his father does.
B. He thinks his father looks better than his mother does.
C. He loves his mother more than his father.

[简答题]

How Green is your orange juice More than a year ago, PepsiCo enlisted Columbia University’s Earth Institute and the environmental-auditing firm Carbon Trust to help assess the carbon footprint of each half gallon of its Tropicana orange juice. The sustainability initiative found that on average the process, from growing the oranges to getting a 64-oz. carton of healthy goodness into your fridge, involved emitting 3.75 Ib. of greenhouse gases. And the single biggest contributor to Tropicana’s carbon footprint wasn’t the gas-guzzling trucks that deliver the cartons to stores or the machinery used to run a modern citrus facility. It was the fertilizer for the orange trees, which accounted for a whopping 35% of the OJ’s overall emissions. That came as a surprise even to the people doing the accounting. "We thought it might be transport or packaging," says Tim Carey, PepsiCo’s sustainability director. "But the agricultural aspects of the op

[简答题]How Green is your orange juice More than a year ago, PepsiCo enlisted Columbia University’s Earth Institute and the environmental-auditing firm Carbon Trust to help assess the carbon footprint of each half gallon of its Tropicana orange juice. The sustainability initiative found that on average the process, from growing the oranges to getting a 64-oz. carton of healthy goodness into your fridge, involved emitting 3.75 Ib. of greenhouse gases. And the single biggest contributor to Tropicana’s carbon footprint wasn’t the gas-guzzling trucks that deliver the cartons to stores or the machinery used to run a modern citrus facility. It was the fertilizer for the orange trees, which accounted for a whopping 35% of the OJ’s overall emissions. That came as a surprise even to the people doing the accounting. "We thought it might be transport or packaging," says Tim Carey, PepsiCo’s sustainability director. "But the agricultural aspects of the operation are more important than we expected. "

[单项选择]A) More than 70 million. C) More than 2000 million.
B) More than 1000 million. D) More than 6000 million.

[单项选择]If you took more than your share of the money, you should at once （）by returning the extra.
A. give up
B. make amends
C. feel ashamed
D. get punished

[单项选择]Are your Facebook friends more interesting than those you have in real life Has high-speed Internet made you impatient with slow-speed children Do you sometimes think about reaching for the fast-forward button, only to realize that life does not come with a remote control If you answered yes to any of those questions, exposure to technology may be slowly reshaping your personality. Some experts believe excessive use of the Internet, cellphones and other technologies can cause us to become more impatient, impulsive, forgetful and even more narcissistic (自我陶醉的).
In a study to be published in the journal Cyberpsychology, Behavior and Social Networking, researchers from the University of Melbourne in Australia subjected 173 college students to tests measuring risk for problematic Internet and gambling behaviors. About 5 percent of the students showed signs of gambling problems, but 10 percent of the students posted scores high enough to put them in the at-risk category for Internet "a
A. might result in gambling problems
B. coincided with gambling behaviors
C. affected students’ lives in a negative way
D. could make students’ lives more efficient

[单项选择]Chances are your friends are more popular than you are. It is a basic feature of social networks that has been known about for some time. Consider both an enthusias- tic cocktail party hostess with hundreds of acquaintances and an ill-tempered guy, who may have one or two friends. Statistically speaking, the average person is much more likely to know the hostess simply because she has so many more friends. This, in essence, is what is called the "friendship paradox": the friends of any random individual are likely to be more central to the social web than the individual himself.
Now researchers think this seemingly depressing fact can be made to work as an early warning system to detect outbreaks of contagious diseases. By studying the friends of a randomly selected group of individuals, epidemic disease experts can isolate those people who are more connected to one another and are therefore more likely to catch diseases like the flu early. This could allow health authorities to s
A. one’s friends are usually more popular than him.
B. ill-tempered persons often have very few friends.
C. people tend to befriend those more sociable than them.
D. the hostess wins her acquaintances through parties.