夏初，一位生物教师计划制作一批小草的腊叶标本，下列不需要用到的工具是（）A．采集筒B．铁锹C．枝剪D．绳子和标本夹-七年级生物

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• It is important _________.[ ]A. to stay healthB. to stay healthyC. stay healthD. stay healthy -八年级英语
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• 某同学想观察苍蝇足的结构特点，他应该选用的最合适的方法是()A．肉眼直接观察B．放大镜观察C．低倍显微镜观察D．高倍显微镜观察-七年级生物
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• 调查是科学探究常用的方法之一．调查时，应明确______和______，制定合理的______，并对调查过程所做的记录进行______和______，必要时进行数学统计．如果调查的范围很大，可选-生物
• Don’t forget ______the windows when you leave. [ ]A. close B. closing C. to close D. closed -八年级英语
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• He pretended ________for fear of the coming examination. [ ]A. ill B. to be ill C. being illD. to be
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• Mr Brown asked us to stop , and we stoppedto him at once. [ ]A. talking, to listen B. to talk, to li
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