______ the Hubble Space Telescope, astronomers detected the two small, faint moo

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问题 ______ the Hubble Space Telescope, astronomers detected the two small, faint moons orbiting Pluto in the Kupier Belt.

选项 A、To use
B、Using
C、Having used
D、Use

答案 B

解析此题考查的是分词作状语，这里是-ing分词作方式状语。意为宇航员用哈勃望远镜观测到柯伊伯带环绕冥王星的两个卫星。

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