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【简答题】
读对话，回答问题。 Mary: What can you do, John? John: I can cook the meals. What can you do? Mary: I can make the bed, wash the clothes and use a computer. John: I can use a computer, too. I have a sister. She is very little. But she can water the flowers. Mary: Great! She is a good girl. 1. What can John do? _____________________________________________________ 2. Can Mary make the meals? _____________________________________________________ 3. What can Mary do? _____________________________________________________ 4. Who can use a computer? _____________________________________________________ 5. Can John's sister water the flowers? _____________________________________________________ 6. Is John's sister a good girl? _____________________________________________________
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皮皮学刷刷变学霸
举一反三
【简答题】与机床主轴重合或平行的刀具运动坐标轴为()轴，远离工件的刀具运动方向为()。
【多选题】偏斜原因包括（）
A.
沉井刃脚下土质软硬不均
B.
除土不均匀对称
C.
排土堆放不合理，或单侧受水流冲击淘空等导致沉井承受不 对称外力作用
D.
抽垫方法欠妥，回填不及时
【简答题】与机床主轴重合或平行的的运动坐标轴为 _____轴,远离工件的刀具运动方向为__ _ _ _方向。