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The scientists are not sure______.
A．how long the ice age lasted
B．where ice sheets (冰川) melted during the ice age
C．what caused the temperature changes
D．what the earth is made up of
答案
更多“The scientists are not sure______.A．how long the ice age lastedB．where ice sheets （冰川) m”相关的问题
第1题
The microscope enables scientists to distinguish a(n) ______ number and variety of bacteria.
A．selected
B．incredible
C．verifiable
D．unavoidable
第2题
According to scientists, people sneeze because ______.
A．they are ill
B．to sneeze is human nature
C．they do not need any conscious help
D．they do not like their noses
第3题
According to scientists, people sneeze because_______.
A．they are ill
B．to sneeze is human nature
C．they do not need any conscious help
D．there are unwanted things in their noses
第4题
Many great thinkers and scientists in the world are dyslexic.
A. Right B. Wrong C. Not mentioned
第5题
How did the scientists do the test？
A．Very rich breakfasts.
B．Different foods or sometimes none (没有一个).
C．No breakfast at all.
第6题
Which of the following statements about scientists is true？
A．Scientists tend to approach non-scientific problems in a more objective way than common people.
B．Most scientists believe arts and literature are of little use and hence think little of them.
C．Scientists are against the concept that science means a way of looking at the world partly for professional jealousy.
D．All scientist are totally in line with the government of their country.
第7题
Which of the following statements is NOT true？
A．It is the production by termites that is now of greater concern.
B．What scientists worry more about is the output from burning fuels.
C．The output from burning fuels is now rising steadily.
D．The burning of fuels generates much less carbon dioxide than termites do.
第8题
The scientists began to accumulate data.
A．collect
B．handle
C．analyze
D．investigate
第9题
There will be more women scientists than men scientists in the future.
A．Right
B．Wrong
C．Not mentioned
第10题
Other scientists are looking at experiments that are similar in that they are ______.
A．costly
B．economical.
C．traditional
D．bold.
