Choose the correct word for the given Chinese._______智力(5.0分)
A. intellegence
B. intelligence
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Choose the correct word for the given Chinese._______包缠,使卷入(5.0分)
A. imvolve
B. involve
Choose the correct Chinese meaning for the following English words.
氧气和乙炔的混合比为1.1-1.2时燃烧形成的火焰是( )
A. 氧化焰
B. 中性焰
C. 碳化焰