摘要：( ) Some physics problems in this book are difficult for the students work out. A. so; that B. not; but C. such; that D. too; to
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Some physics problems in this book are _____ difficult for the students ____ work out.
A. so; that B. not; but C. such; that D. too; to
查看习题详情和答案>>Some physics problems in this book are _________difficult for the students _________work out.
| A．so; that | B．not; but |
| C．such; that | D．too; to |