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外语
After years of research, Charles Drew devised a procedure for preserving plasma.
After years of research, Charles Drew devised a procedure for preserving plasma.
admin
2011-02-26
78
问题
After years of research, Charles Drew devised a procedure for
preserving
plasma.
选项
A、transporting
B、saving
C、reusing
D、labeling
答案
B
解析
转载请注明原文地址:https://kaotiyun.com/show/13BO777K
0
考博英语
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