---What is our earth like from the moon? ---Well, our earth, with water 70% of i
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---What is our earth like ________from the moon?
---Well, our earth, with water ________ 70% of its surface, appears as a "blue ball".
| A.seen; covering | B.seen; to cover |
| C.seeing; covered | D.seeing; covering |
试题答案
A
解析