2. 外语
  3. We will not attack ______ we are attacked; if attacked, we will certainly counter-attack.

We will not attack ______ we are attacked; if attacked, we will certainly counter-attack.

admin2009-12-10  41
问题 We will not attack ______ we are attacked; if attacked, we will certainly counter-attack.
选项 A、if
B、when
C、unless
D、even if
答案C
解析
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