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  3. Although just inside the orbit of Jupiter, amateur astronomers with good telesco

Although just inside the orbit of Jupiter, amateur astronomers with good telesco

游客2025-02-25  18
问题 Although just inside the orbit of Jupiter, amateur astronomers with good telescopes should be able to see the comet within the next few weeks.
选项 A、Although just inside the orbit of
B、Although it is just inside the orbit of
C、Just inside the orbit of
D、Orbiting just inside
E、Having orbited just inside
答案 B
解析 A、C、D、E的表达形式尽管不同，但都表明主句的主语amateur astronomer是句首让步从句(分词或介词短语)的语法上的主语。但从逻辑上讲，全错，因为这些短语或从句的真正逻辑主语应是the comet，两者产生矛盾。因此B正确，用it指代主句中的the comment，使用了完整的让步从句，避免了逻辑错误。
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