题目内容
（请给出正确答案）
A、Implants
B、Tissue engineering scaffold
C、Drug carrier
D、Medical device
如果结果不匹配，请 联系老师 获取答案
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A. WireShark
B. TCPDump
C. Adobe Reader
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以下四组用户自定义标识符中，全部合法的一组是()。
A．_main enclude sin
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The little girl could not ______ the attraction of the piece of the chocolate.
A．consist
B．persist
C．insist
D．resist
（） it not been for his help, we （）.
A.Had… would not succeed
B.Had … could not have succeeded
C.Would have… could not have succeeded
D.Had… could not succeed
In the first paragraph, the word "environments" could best be replaced by____.
A．contexts
B．surroundings
C．neighbors
D．enemies
A.can John go
B.John can go
C.could John go
D.John could go
