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【单选题】
双子座流星雨的辐射点位于( )附近
A.
北河二
B.
北河三
C.
天猫与双子交界
D.
御夫与双子交界
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举报参考答案：
举一反三
【单选题】Unless we spend money to spot and pr asteroids (小行星) now, one might crash into Earth and destroy life as we know it, say some scientists. Asteroids are bigger versions of the meteoroids (流星) that...
A.
Optimistic.
B.
Critical.
C.
Objective.
D.
Arbitrary.
【单选题】Unless we spend money to spot and pr asteroids (小行星) now, one might crash into Earth and destroy life as we know it, say some scientists. Asteroids are bigger versions of the meteoroids (流星) that...
A.
It is very unlikely, but the er exists.,
B.
Such a collision might occur once every 25 years.
C.
Collisions of smaller asteroids with Earth occur more often than expected.
D.
It’s still too early to say whether such a collision might occur.
【单选题】Unless we spend money to spot and pr asteroids (小行星) now, one might crash into Earth and destroy life as we know it, say some scientists. Asteroids are bigger versions of the meteoroids (流星) that...
A.
It is very unlikely, but the er exists.,
B.
Such a collision might occur once every 25 years.
C.
Collisions of smaller asteroids with Earth occur more often than expected.
D.
It’s still too early to say whether such a collision might occur.
【单选题】Space is a erous place, not only because of meteors (流星) but also because of rays from the sun and other stars. The atmosphere again acts (67) our protective blanket on (68) . Light gets through, ...
A.
from
B.
than
C.
as
D.
away
【单选题】Space is a erous place, not only because of meteors (流星) but also because of rays from the sun and other stars．The atmosphere again acts 【C1】______ our protective blanket on 【C2】______ ．Light gets...
A.
for
B.
with
C.
on
D.
as
【单选题】Space is a erous place, not only because of meteors(流星) but also because of rays from the sun and other stars. The atmosphere again acts as our protective blanket on earth. Light gets through, and...
A.
The Atmosphere and Our Environment
B.
Research on Radiation
C.
Effects of Space Radiation
D.
Importance of Protection Against Radiation
【单选题】Space is a erous place, not only because of meteors (流星) but also because of rays from the sun and other stars. The atmosphere again acts (67) our protective blanket on earth. Light gets through...
A.
curable B. capable
B.
C. efficient D. effective
【单选题】Space is a erous place, not only because of meteors(流星) but also (1)_____ rays from the sun and other stars. The atmosphere again (2)_____ as our protective blanket on earth. Lightgets through, an...
A.
accumulated
B.
assembled
C.
contained
D.
gathered
【单选题】Unless we spend money to spot and pr asteroids (小行星) now, one might crash into Earth and destroy life as we know it, say some scientists. Asteroids are bigger versions of the meteoroids (流星) that...
A.
They are heavenly bodies different in composition.
B.
They are heavenly bodies similar in nature.
C.
There are more asteroids than meteoroids.
D.
Asteroids are more mysterious than meteoroids.
相关题目：
【单选题】Unless we spend money to spot and pr asteroids (小行星) now, one might crash into Earth and destroy life as we know it, say some scientists. Asteroids are bigger versions of the meteoroids (流星) that...
A.
Optimistic.
B.
Critical.
C.
Objective.
D.
Arbitrary.
【单选题】Unless we spend money to spot and pr asteroids (小行星) now, one might crash into Earth and destroy life as we know it, say some scientists. Asteroids are bigger versions of the meteoroids (流星) that...
A.
It is very unlikely, but the er exists.,
B.
Such a collision might occur once every 25 years.
C.
Collisions of smaller asteroids with Earth occur more often than expected.
D.
It’s still too early to say whether such a collision might occur.
【单选题】Unless we spend money to spot and pr asteroids (小行星) now, one might crash into Earth and destroy life as we know it, say some scientists. Asteroids are bigger versions of the meteoroids (流星) that...
A.
It is very unlikely, but the er exists.,
B.
Such a collision might occur once every 25 years.
C.
Collisions of smaller asteroids with Earth occur more often than expected.
D.
It’s still too early to say whether such a collision might occur.
【单选题】Space is a erous place, not only because of meteors (流星) but also because of rays from the sun and other stars. The atmosphere again acts (67) our protective blanket on (68) . Light gets through, ...
A.
from
B.
than
C.
as
D.
away
【单选题】Space is a erous place, not only because of meteors (流星) but also because of rays from the sun and other stars．The atmosphere again acts 【C1】______ our protective blanket on 【C2】______ ．Light gets...
A.
for
B.
with
C.
on
D.
as
【单选题】Space is a erous place, not only because of meteors(流星) but also because of rays from the sun and other stars. The atmosphere again acts as our protective blanket on earth. Light gets through, and...
A.
The Atmosphere and Our Environment
B.
Research on Radiation
C.
Effects of Space Radiation
D.
Importance of Protection Against Radiation
【单选题】Space is a erous place, not only because of meteors (流星) but also because of rays from the sun and other stars. The atmosphere again acts (67) our protective blanket on earth. Light gets through...
A.
curable B. capable
B.
C. efficient D. effective
【单选题】Space is a erous place, not only because of meteors(流星) but also (1)_____ rays from the sun and other stars. The atmosphere again (2)_____ as our protective blanket on earth. Lightgets through, an...
A.
accumulated
B.
assembled
C.
contained
D.
gathered
【单选题】Unless we spend money to spot and pr asteroids (小行星) now, one might crash into Earth and destroy life as we know it, say some scientists. Asteroids are bigger versions of the meteoroids (流星) that...
A.
They are heavenly bodies different in composition.
B.
They are heavenly bodies similar in nature.
C.
There are more asteroids than meteoroids.
D.
Asteroids are more mysterious than meteoroids.
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