2. 外语
  3. Israel is conducting a five-day home-front security【N1】______ to prepare for the possibility of a major【N2】______, war or natura

Israel is conducting a five-day home-front security【N1】______ to prepare for the possibility of a major【N2】______, war or natura

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问题     Israel is conducting a five-day home-front security【N1】______ to prepare for the possibility of a major【N2】______, war or natural disaster. Schools, hospitals and government offices are involved in the【N3】______, which includes preparation for a【N4】______ attack with nuclear, chemical or biological warheads.
【N1】
选项
答案drill
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