题文
The book is not easy.____ it's rather difficult.
| A．On the one hand | B．On the contrary |
| C．On the other hand | D．On the other contrary |
推荐试卷
The book is not easy.____ it's rather difficult.
| A．On the one hand | B．On the contrary |
| C．On the other hand | D．On the other contrary |
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