My mind wasn't on what Mr. Luo was saying, so I'm afraid I ________ half of it. [ ]A. was

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• 若x=3，则x=______．-数学
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• 38的平方根是______．-数学
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• In 1942, Columbus_______ on one of the Bahama Islands, but he mistook it for an island off India. [
• 立方根与平方根相等的数为______．-数学
• 短文改错。 下面短文中共有10处错误，错误涉及一个单词的增加、删除或修改。 增加：在缺词处加一个漏字符号（^），并在其下面写出该加的词。 删除：把多余的词用斜线（\）划掉。 修-高三英语
• 0.64的平方根是______．-数学
• Lei Feng ____ a lot of things for others in his life, people thanked him for what he _____.[ ]A. did
• 364的平方根是______；a的立方根是2，则a=______．-数学
• 64的平方根是______，算术平方根是______，立方根是______．-数学
• 自然数a的算术平方根是m，则它的下一个自然数的平方根是（）A．m+1B．±m+1C．m2+1D．±m2+1-数学
• We were listening closely to the lecture yesterday evening when suddenly the light ________. [ ]A. h
• During the war, he_______ much pain. [ ]A. suffer B. suffered C. suffering D. suffering from -高一英语
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• 下列4种说法：①如果a存在平方根，那么a＞0；②如果a没有平方根，那么a＜0；③如果a的平方根不等于0，那么a不等于0；④a＞0时，a的平方根必大于0；其中，正确的是（）A．①②B．②③C．③④D．①
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