题目内容
（请给出正确答案）
[主观题]
I don’t think Mary understood what you said, _____？A. do I B. didn’t she C. did you D.
I don’t think Mary understood what you said, _____？
A. do I B. didn’t she C. did you D. did she
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完成瘢痕修复的物质基础是
A.上皮组织
B.肉芽组织
C.毛细血管网
D.纤维蛋白网架
E.炎性渗出物
