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【简答题】
五、 Idioms are phrases and sentences that do not mean exactly what they say. Even if you know the meaning of each word you see or hear, you may not understand the idiom because you don't understand the culture behind it. For example, if an American boy asks his mother what’s for dinner tomorrow, she may say “I’ll play it by ear”, that means she doesn't have plans for dinner and she will decide later.“Play by ear”used to mean playing music using the sheet music, but now people often use it when they’re not talking about music. There’re many idioms in English. If you learn to use them, your English will be more vivid and colorful. English idioms are more common in spoken English. They can be difficult to remember sometimes. Next time when you hear somebody saying to you, “Give me a hand”, you don’t necessarily stretch out your hand to him/her, but you do need to be helpful. And when the situation is “out of hand”, you usually can do very little to manage all that. What about a “green hand”? It's not about the color of your hand! You’re a green hand when you are very new at your work and don’t have much experience. If you and your partner always “work together hand in glove”, you two definitely work together very well. Can you guess the meanings of some common English idioms to do with parts of your body?
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举一反三
【单选题】轴的径向尺寸是指 。
A.
直径方向的尺寸
B.
轴向方向的尺寸
【简答题】7-2 看懂输出轴的零件图并回答问题 (1)该零件名称为 ,材料为 ,绘图比例为 。 (2)主视图轴线水平放置,主要是为了符合零件的______位置。 (3)除主视图外,采用了三个 图表达轴上键槽、钻孔、切平面处的断面形状;一个比例为 的 图表达螺纹退刀槽的形状。 (4)指出该轴的径向尺寸基准和轴向主要尺寸基准;指出键槽和钻孔的定位尺寸。(请写在一个空格内) (5)φ40g6的基本尺寸为 ,上偏差...
【判断题】轴类零件是指长度方向尺寸远大于直径方向尺寸的回转体零件。
A.
正确
B.
错误
【单选题】下列晶体的晶格为简单晶格的是
A.
B.
C.
D.
金刚石
【判断题】原料乳一般是指常乳,但初乳的营养也十分丰富,也可以作为普通的原料乳使用。
A.
正确
B.
错误
【单选题】关于胰岛索的作用下列哪项是错的( )
A.
促进脂肪合成,抑制脂肪分解。
B.
抑制蛋白质合成,抑制氨基酸进入细胞
C.
促进葡萄糖利用,抑制糖元分解和产生
D.
促进钾进入细胞,降低血钾
E.
促进蛋白质合成及氨基酸转运
【判断题】为实现刀具的快换,一般要求在数控机床外预先调好刀具尺寸,预调刀具尺寸主要是指轴向尺寸、径向尺寸、切削刃的形状、位置等内容。
A.
正确
B.
错误
【判断题】金刚石晶格是一种简单晶格
A.
正确
B.
错误
【判断题】(  )立式数控车床是指主轴轴线平行于水平面的车床。有一个直径较大的圆形工作台,主要用来加工径向尺寸较大,轴向尺寸较小的大型复杂零件。
A.
正确
B.
错误
【判断题】金钱草的性味归经特征是甘淡,大寒。()
A.
正确
B.
错误
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