题目列表(包括答案和解析)
People burn a lot of young trees every year.(句型转换)
A lot of young trees________ ________ every year.
People burn a lot of young trees every year.(句型转换)
A lot of young trees________ ________ every year.
If H2 burn in O2, we can get _____.
| A．H2 | B．H2O | C．O2 | D．H2O2 |
If H2 burn in O2, we can get _____.
| A．H2 | B．H2O | C．O2 | D．H2O2 |
If H2 burn in O2, we can get _____.
A．H2 B．H2O C．O2 D．H2O2
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