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,many houses have been built in a dangerous position on it.? 2.Anti-government d

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,many houses have been built in a dangerous position on it.? 2.Anti-government d

1. (火山自上一次爆发以来),many houses have been built in a dangerous position on it.?

2.Anti-government demonstrations (突然发生) in the streets in this African country.

试题答案

答案:

解析:
1.Since the volcano last erupted

2.have erupted