题目内容：
火药在军事上广泛使用是在（ ） 。
参考答案：
答案解析：
单选题：火药在军事上广泛使用是在（ ） 。
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--That's the third time he's won the award in this field.--Y
--That's the third time he's won the award in this field.--Yes. He__________ his
--Wang Meng won an Olympic gold medal in the women's 1000m f
--Wang Meng won an Olympic gold medal in the women's 1000m final of speed skatin
What is the man's suggestion?
What is the man's suggestion?
The passage aims at proving that__________．（ ）
The passage aims at proving that__________．（ ）
对下列词语在文中的意义．理解正确的一项是：
对下列词语在文中的意义．理解正确的一项是：