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【单选题】
The VLT was the first to do which of these things?
A.
View a planet orbiting a sun in another solar system.
B.
View other planets in our solar system.
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参考解析：
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举一反三
【单选题】Before the use of telescopes, what did the Milky Way look like?
A.
many small stars
B.
a smear
【单选题】Why is aig mirror helpful?
A.
It gathers more light.
B.
It allows you to see bigger objects.
【单选题】What did ancient astronomers do?
A.
They looked for patterns in the stars and in time.
B.
They thought that the stars changed shape over the course of a year.
【单选题】There is an inherent problem with this type of car.
A.
unusual
B.
unavoidable
C.
annoying