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【单选题】
防止套类零件钻径向通孔时轴线偏斜的方法有分度头工件翻转180°钻孔法、下部套打样冲孔钻孔法、（）钻孔法等。A.
套镶钻套
B.
套打入圆芯
C.
套小
D.
套划线
拍照语音搜题，微信中搜索"皮皮学"使用
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参考解析：
知识点：
皮皮学刷刷变学霸
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【简答题】钟路三街(名)
【简答题】某个名人说过人有五个不同阶段需求,举例你身边的人(或你自己)是身处在什么阶段,为什么?(两分钟内录音) 2、从影响企业营销活动的宏观环境和微观环境的各种因素进行分析,本次新冠肺炎疫情期间,那些行业损失比较大,那些行业受益?受益和受损的各举两个行业,要讲清理由。(四分钟内录音)
【简答题】螺纹的要素包括 : 、 、 、 和 。只有当所有要素 才能旋合。
【单选题】Ben consumes soda and cheeseburgers. If his total utility from sodas is currently 40, and his total utility from cheeseburgers is 30, and the price of cheeseburgers is twice the price of sodas,
A.
Ben is in equilibrium.
B.
Ben should increase his soda consumption and decrease his cheeseburger consumption.
C.
Ben should decrease his soda consumption and increase his cheeseburger consumption.
D.
we cannot conclude that any of the above are correct.
【单选题】Ben consumes soda and cheeseburgers. If his marginal utility from sodas is currently 20, and his marginal utility from cheeseburgers is 10, and the price of cheeseburgers is twice the price of sodas,
A.
Ben is in equilibrium.
B.
Ben should increase his soda consumption and decrease his cheeseburger consumption.
C.
Ben should decrease his soda consumption and increase his cheeseburger consumption.
D.
we cannot conclude that any of the above are correct.
【简答题】螺纹的要素包括牙型、 、 、螺距和导程、 五项。
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