[填空题]a test people carry out to study something

[填空题]a test people carry out to study something

[简答题]When did the research team carry out the study
A. A．At the end of World War II
B．Between 1944 and 1945
C．In the 1950s
D．In 2007

[简答题]is likely to be. Carry out your study thorough, and repeat it to ensure your results are reliable.

[填空题]Something people can write or draw on.

[填空题]This is something people wear when it rains.

[填空题]something people use to keep them dry from rain

[填空题]This is something people use to keep off the rain.

[单项选择]A new study finds out that a kid can learn without（）what he is doing.
A. realize
B. realized
C. realizing
D. to realize

[单项选择]Every other week it seems a new study comes out that adds to our already-formidable store of parental worries. But even by those upgraded standards, the report issued last week by the federal government’s National Center for Health Statistics contained a jaw-dropper: the parents of nearly one of every five boys in the United States were concerned enough about what they saw as their sons’ emotional or behavioral problems that they consulted a doctor or a healthcare professional. By comparison, about one out of 10 parents of girls reported these kinds of problems.
The report confirms what many of us have been observing for some time now: that lots of school-age boys are struggling. And, parents are intensely worried about them.
What is bothering our sons Some experts suggest we are witnessing an epidemic of ADD (attention deficit disorder) and say boys need more treatment. Others say that environmental pollutants found in plastics, among other things, may be eroding their
A. Parents’ over-attention.
B. The way they are reared and educated.
C. The insufficient medicine for ADD.
D. Environmental pollutants found in things they use.