问题描述：
①It is dark in the room.Can you see these pictures_____(clear)enough?横线上应填什么?
②Birdwatching or watching wild birds at a distance t____a telescope has a long history
of m____than 100 years 首字母填空.
②Birdwatching or watching wild birds at a distance t____a telescope has a long history
of m____than 100 years 首字母填空.
问题解答：
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