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【单选题】
轴类零件上的键槽主要采用( )表达方法。
A.
局部视图
B.
局部剖视图
C.
局部放大图
D.
断面图
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参考答案:
举一反三
【判断题】Reader类有方法可以读取并返回浮点数和双精度数。这种说法对还是错?A. 对 B. 错
A.
正确
B.
错误
【单选题】下列哪种属于动力对流冲击力:
A.
山坡迎风面对空气的抬升
B.
气流辐合辐散时造成的空气水平运动
C.
气温变化造成的空气抬升或下降
【单选题】When using the moving-average cost formula with a perpetual system,
A.
a weighted-average cost is calculated at year end.
B.
a new unit cost is calculated each time a sale is made.
C.
a new unit cost is calculated each time a purchase is made.
D.
a new unit cost is calculated both when a sale is made and when a purchase is made.
【简答题】When building m______ cost more, the price of houses increases.
【判断题】曳引减速器的作用是降低转速和增大转矩.()
A.
正确
B.
错误
【单选题】mso-hansi-font-family:"Times New Roman"">裙腰在低腰状态时的造型为
A.
mso-hansi-font-family:"Times New Roman"">扇面形
B.
mso-hansi-font-family:"Times New Roman";mso-bidi-font-family:"Times New Roman"; mso-ansi-language:EN-US;mso-fareast-language:ZH-CN;mso-bidi-language:AR-SA">矩形
C.
mso-hansi-font-family:"Times New Roman"">倒置的扇面形
D.
mso-bidi-font-family:"Times New Roman";mso-ansi-language:EN-US;mso-fareast-language: ZH-CN;mso-bidi-language:AR-SA">梯形
【判断题】曳引减速器的作用是降低转速和增大转矩。
A.
正确
B.
错误
【单选题】When marginal cost exceeds average total cost,
A.
average fixed cost must be rising.
B.
average total cost must be rising.
C.
average total cost must be falling.
D.
marginal cost must be falling.
【单选题】Marginal cost is rising when marginal cost is:
A.
positive.
B.
less than average cost.
C.
greater than average cost.
D.
none of these.
【单选题】Marginal cost is equal to average total cost when( )
A.
average variable cost is falling.
B.
average fixed cost is rising.
C.
marginal cost is at its minimum
D.
average total cost is at its minimum
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