题文
Innovation is a natural desire of the human mind to develop variety，__________ activity is involved.
| A．no matter when |
| B．however |
| C．whatever |
| D．no matter which |
推荐试卷
Innovation is a natural desire of the human mind to develop variety，__________ activity is involved.
| A．no matter when |
| B．however |
| C．whatever |
| D．no matter which |
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