2. 外语
  3. Recent research into aging suggests that the body’s defense mechanisms may lose the ability to distinguish what is alien.

Recent research into aging suggests that the body’s defense mechanisms may lose the ability to distinguish what is alien.

admin2011-02-26  52
问题 Recent research into aging suggests that the body’s defense mechanisms may lose the ability to distinguish what is alien.
选项 A、insane
B、infectious
C、foreign
D、poisonous
答案C
解析
转载请注明原文地址:https://www.kaotiyun.com/show/etBO777K
0

考博英语

相关试题推荐
随机试题
最新回复(0)