What may give rise to the changes in marriage age？A.Sharply rising divorce rate.

Many people have weight loss surgery possibly because overweight may give rise to death.

A．Y

B．N

C．NG

The increase in the number of cars may give rise to air pollution.

A．invent

B．cause

C．lead

D．decrease

Global warming may also give rise to the spread of many infectious diseases.

A．Right

B．Wrong

C．Not mentioned

What do people nowadays desire to do concerning their marriage？

A．To embrace changes of thought

B．To adapt to the disintegrated family life

C．To return to the practice in the '60s and '70s

D．To create stability in their lives

According to the passage, why is age classification changeable？

A．An individual's age classification changes as one progresses through the life cycle.

B．The individual may be an ageist with respect to others.

C．An individual's age classification changes with the development of society.

D．The individual may be an ageist with respect to himsel

According to the passage, why is age classification changeable？

A．An individual"s age classification changes as one progresses through the life cycle.

B．The individual may be an ageist with respect to others.

C．An individual"s age classification changes with the development of society.

D．The individual may be an ageist with respect to himself.

What can we learn from the latest report from the climate panel？

A．If the carbon dioxide doubles, the global temperature may rise 3.5 to 8 degrees Fahrenheit.

B．Sea levels are likely to rise in this century as the result of global warming.

C．Sea water is likely to rise between 3.5 and 8 degrees in about 100 years.

D．The changes of climate will come centuries later.