题文
Just like fingerprints, each person’s DNA is ______ unless he has a twin.
| A.unusual |
| B.normal |
| C.various |
| D.unique |
推荐试卷
Just like fingerprints, each person’s DNA is ______ unless he has a twin.
| A.unusual |
| B.normal |
| C.various |
| D.unique |
试题篮
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