更多"Scientists are not sure how serious"的相关试题:
[单项选择]Scientists are not sure how serious the effects of global warming will be.
[单项选择]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
[单项选择]When did scientists come to realize how the atoms and molecules on the Earth mostlikely combined to make living things
A. 4 billion years ago.
B. After seven days.
C. Many years ago.
D. In 1953.
[单项选择]Up to now scientists have not found how to ______ patients of that disease.
A. cure
B. treat
C. deal with
D. get rid of
[单项选择]Up to now scientists have not found how to______patients of that disease.
A. cure
B. treat
C. deal with
D. get rid of
[单项选择]British scientists have found how to diagnose the disease, which causes loss of memory and personality change.
A. control
B. determine
C. prevent
D. treat
[单项选择]A task for future scientists is to find out how an animal receives a warning signal.
[单项选择]Scientists have spent years into the effects of certain chemicals on the human brain, but with no result.（）
A. studying
B. researching
C. investigating
D. inspecting
[单项选择]（）scientists understand how and why earthquakes happen, forecasts are usually inaccurate.
A. As
B. While
C. For
D. Since
[单项选择]We are sure that scientists will a way to solve the difficult problem.
A. put up
B. come up with
C. look up
D. come up
[单项选择]How did scientists discover the source of lead pollution in Green land
A. By analyzing the data published in journals like Nature and Ambio.
B. By observing the lead accumulation in different parts of the arctic area.
C. By studying the chemical elements of soil and snow in North eastern America.
D. By comparing the chemical compositions of leaded gasoline used in various countries.
[单项选择]How did scientists increase "the speed of their perceptions a thousand fold"
A. By analyzing photographs.
B. By observing a white cat in a dark room.
C. By dropping a cat from a greater height.
D. By studying Newton’s Laws of motion.
[单项选择]Scientists, who are now aware of how nautiluses regulate their buoyancy, have been able to dispel erroneous ideas about these creatures.
A. misconceptions
B. misdemeanors
C. misgivings
D. misdirections
[单项选择]On a daily basis, how many passengers with serious in-flight medical problems call for pilots to turn the flight around
A. 2.
B. 4.
C. 5.
D. 14.
[单项选择]How can you reverse the effects of an ALTER DISKGROUP ... DROP DISK command if it has not yetcompleted?（）
A. Issue the ALTER DISKGROUP ... ADD DISK command.
B. Issue the ALTER DISKGROUP ... UNDROP DISKS command.
C. Issue the ALTER DISKGROUP ... DROP DISK CANCEL command.
D. Retrieve the disk from the Recycle Bin after the operation completes.
[单项选择]Scientists do not know ________.A. how children learn their own languagesB. when children begin to learn their own languagesC. why children learn their own languages
[单项选择]He (will not do) it (had he known) how (serious) the (outcome) would be.
A. will not do
B. had he known
C. serious
D. outcome
