【单选题】【消耗次数：1】
_____ drills that have no real topic have to remain as they are.
①
Manufacture
②
Manipulative
③
Manipulate
④
Manifest
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相关题目
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①
had he realized
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随机题目
【判断题】
<img class=jc-formula data-tex=\phi 10g6,\quad \phi 10g7,\quad \phi 10g8\quad \quad src=https://huaweicloudobs.ahjxjy.cn/7E43C926D1F11926417D25971CC45189.png style=vertical-align: middle;/>的上偏差都相等，只是它们的下偏差各不相同。
①
正确
②
错误