题目内容
（请给出正确答案）
A. People were concerned about the number of bees.
B. Several cases of Zika disease had been identifie
C. Two million bees were infected with diseas
D. Zika virus had destroyed some bee farms.
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更多“Why were spraying operations c…”相关的问题
听力原文： The University of California at Davis has government experiments with chemicals to get a bigger crop each year. But they haven't paid enough attention to necessary safety measures. In 1964 or 1965, an airplane was spraying chemicals over the fields. Flying low, the wheels of the plane were caught on the fence wire. The pilot got out, dusted himself off, and drank some water from a nearby pond. Then he died. The nurses and doctors got terribly sick too because of the chemicals he had on his body. A little girl was playing around a sprayer. She stuck her tongue on it and she died immediately.
These chemicals affect the farm worker through the lungs. He breathes them in. Nobody looks into the cause at all. They just was the he is sick.
Why did the plane fall to the ground？
A．It was flying low.
B．Its wheels were caught on a tree.
C．Because the chemicals caught fire easily.
When did Mr. Morrison receive an e-mail from Ms. Meyer？
A．On May 9
B．On May 10
C．On May 11
D．On May 12
Why does Bill Randel say that the findings are surprising？
A．The findings are completely opposite to previous findings.
B．The findings are not understandable at all.
C．Water vapor has both positive and negative effects.
D．The effect of water vapor is so significant.
Why does the woman suggest that the man change his reservation date？
A．The hotel doesn"t open that day.
B．She doesn"t work that day.
C．There is no free room that day.
D．The hotel is fully booked on June 28th.
The Writing's on the Wall？
Is it art or is it just vandalism(野蛮行为)？ Well，it's still a crime，but graffiti(涂鸦) has changed since the days of spraying your name on a wall to mark your territory．Street art has become much more sophisticated since a 17-year-old called Demetrius started spraying his “tag”，TAKI 183，all over the NewYork underground in 1971，and hip-hop culture was born．Hip-hop is a mixture of art，music and dancing，poetry，language and fashion．It came from young inner-city people，who felt left out by their richerclassmates and who were desperate to express themselves in any way they could．
An experiment to control the spread of graffiti in Rochdale，Greater Manchester，has been so successful that plans have been made by local street artists for an international convention in June．“We're planning to get people together from different countries like France and Germany for a week，”says Liam，one of the organizers．The scheme started in 2000，and has attracted people of all age groups and both sexes．“We all share a common interest and get on really well with each other．”The first site to be chosen was a subway．“Before we began，people were afraid to use the subway．We had it cleaned up and now，with all the artists hanging out down there，people are using it again．People can relate to graffiti much more now．”By providing places to display their talents legally，there has been a fall in the amount of“tagging”on people's private property．
Street artist Temper developed his drawing skills at a young age．In art classes at school he was really frustrated because the Art teacher didn't spend time with him．They thought he was already very good at art and so spent more time with other students．So，at 12 years old，Temper started painting with all these guys he'd hooked up with who were about 22 years old．He looked up to them and loved what they were doing on the streets of Wolvehampton，England．“The whole hip-hop scene was built up of different things and I did a bit of everything．But it was always the graffiti I was best at，”he says．
Demetrius was a teenager from New York．
A．Right
B．Wrong
C．Not mentioned
A．The only method of preventing the disease is to get flu vaccines.
B．Dr. Morens was optimistic about the immediate future.
C．As many as 87 percent of the 11,000 people who died from R. S.V. each year were 65 and older.
D．The vaccine, which is made from a killed virus, can give people the flu.
Why were early umbrellas difficult to use？
A．Because they were very big.
B．Because they were very small.
C．Because they were made of wood.
Why did they stop playing games？
A．Because they were tired.
B．Because it was raining.
C．Because they were hungry.
Why were cracks in old houses not a big concern？
A．Because indoor cleanness was not emphasized.
B．Because energy used to be inexpensive.
C．Because environmental protection was given top priority.
D．Because they were technically unavoidable.
Why did the people in the research feel lonely？
A．They were self-conscious．
B．They were not adaptable．
C．They were homesick．
D．They were too proud．
