The Chinese nation has （） significantly to the progress of human civilization.

A:related B:contributed C:owed D:attached

After a long and gruesome season, Jeff Wills has been performing （） better since the playoffs started a week ago.

A:significance B:significant C:significancy D:significantly

A:Significantly B:Closely C:Consequently D:Particularly

Studies of deforestation(采伐森林，毁坏森林) in Amazon rainforest have underestimated the actual extent of forest loss by half or more, according to a study published in the April 8, 1999, issue of the journal Nature.
Past efforts to estimate deforestation in the Amazon have relied on satellite images to calculate forest loss. The new analysis found that satellite images were useful for estimating deforestation by logging(伐木)and fires on an extent of land, but failed to capture numerous smaller pockets of damage, including damages caused by selective logging(a harvesting technique in which only selected trees are removed) and surface fires, which is often hard to detect from satellite images, as new growth quickly masks it.
The new study focused on Brazil’s Amazon region, where most of the rainforest is located. The researchers interviewed 1,500 wood mill operators and 200 landowners about logging practices, harvest records and fire damages on their lands. The researchers verified the information collected by measuring the actual wood harvest in selected parts of forest, and by surveying fire damages from an airplane at over 1,100 sample points.
The research team found that damage from the fires varied significantly from year to year due to larger environmental factors, but roughly similar damage caused by logging. They determined that actual deforestation in the Brazilian Amazon was at least double the damage estimates derived from satellite images.
Damages caused by logging and fires threatened the Amazon rainforest. Sunlight can penetrate holes in the forest shelter and reach the floor, drying plants and increasing the risk of fire. At the global level, many scientists worry that continued burning and logging in the forest will further raise levels of carbon dioxide in the atmosphere. Rising levels of carbon dioxide—a so-called greenhouse gas because it traps heat in the lower atmosphere— has been linked to global warming.
Strict limits on logging, stronger efforts preventing fire, and controls on development could all help slow deforestation, the researchers said.

A:Damages from fire and logging in the Amazon rainforest vary significantly from year to year. B:The worsening of the global environment is chiefly due to deforestation. C:It is a hard work to determine the accurate deforestation in the Brazil's Amazon region. D:Farmers should be blamed for the worsening of the global environment.

Studies of deforestation(采伐森林，毁坏森林) in Amazon rainforest have underestimated the actual extent of forest loss by half or more, according to a study published in the April 8, 1999, issue of the journal Nature.
Past efforts to estimate deforestation in the Amazon have relied on satellite images to calculate forest loss. The new analysis found that satellite images were useful for estimating deforestation by logging(伐木)and fires on an extent of land, but failed to capture numerous smaller pockets of damage, including damages caused by selective logging(a harvesting technique in which only selected trees are removed) and surface fires, which is often hard to detect from satellite images, as new growth quickly masks it.
The new study focused on Brazil’s Amazon region, where most of the rainforest is located. The researchers interviewed 1,500 wood mill operators and 200 landowners about logging practices, harvest records and fire damages on their lands. The researchers verified the information collected by measuring the actual wood harvest in selected parts of forest, and by surveying fire damages from an airplane at over 1,100 sample points.
The research team found that damage from the fires varied significantly from year to year due to larger environmental factors, but roughly similar damage caused by logging. They determined that actual deforestation in the Brazilian Amazon was at least double the damage estimates derived from satellite images.
Damages caused by logging and fires threatened the Amazon rainforest. Sunlight can penetrate holes in the forest shelter and reach the floor, drying plants and increasing the risk of fire. At the global level, many scientists worry that continued burning and logging in the forest will further raise levels of carbon dioxide in the atmosphere. Rising levels of carbon dioxide—a so-called greenhouse gas because it traps heat in the lower atmosphere— has been linked to global warming.
Strict limits on logging, stronger efforts preventing fire, and controls on development could all help slow deforestation, the researchers said.

A:Damages from fire and logging in the Amazon rainforest vary significantly from year to year. B:The worsening of the global environment is chiefly due to deforestation. C:It is a hard work to determine the accurate deforestation in the Brazil's Amazon region. D:Farmers should be blamed for the worsening of the global environment.

Early cancer screening can help reduce significantly

A:the death rates for all chronic diseases. B:the kinds of cancer attacking people. C:the incidence rate for cancer. D:the death rate for cancer.

It was a question of making sure that certain needs were addressed, notably in the pensions are

A:a. noticeably remarkably particularly significantly