题目内容

Which strategy does the woman use for her presentation?

A. Read the information on the handouts
B. Ask volunteers to participate
C. Show visuals to explain the points
D. Respond to questions from the group

查看答案
更多问题

When a pet dog eliminates in the house while it's raining hard, it ______.

A. indeed takes a revenge on its owner
B. is showing fear to the bad weather
C. doesn't take a revenge on its owner
D. wants the house to be as wet as the outside

听力原文: Thunderstorms are the least dangerous and least violent of all the storms. Almost everyone has experienced a thunderstorm with its heavy rains, high winds, lightning and accompanying thunder. This type of storm can release a great deal of energy. A single thunderstorm can release energy to the atmosphere equivalent to a hydrogen bomb. There are some 50,000 thunderstorms that occur on earth daily. This would make the daily energy released into the atmosphere equal to billions of tons of TNT.
Certain conditions must exist for thunderstorms to develop. First, the air must contain a great deal of water vapor. Second, there must be a rapidly rising air current. Thunderstorms may produce lightning and thunder. Lightning is a result of the rapidly rising air. The temperature produced by lightning is nearly 50,000 degrees Fahrenheit. This tremendous amount of heat causes the air to expand suddenly. This causes sound waves to be produced in the air which are heard as a crashing or loud noise called thunder.
(30)

A. Equivalent to a hydrogen bomb.
B. Equivalent to tons of hydrogen bombs.
C. Equivalent to tons of TNT.
D. Equivalent to a ton of TNT.

Identify the main periods of mass extinction. Click on 2 answer choices.

A. Permian
B. Cenozoic
Cretaceous
D. Mesozoic

According to the study by Moore, what causes gang activity?

A. Cliques that form. in high school
B. Normal feelings of insecurity in teens
C. Abusive family members in the home
D. Loyalty to family already in the gang

答案查题题库