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【单选题】
关于引导手信号的描述正确是A.
昼间两臂至头上向两侧急剧摇动
B.
昼间展开的绿色信号旗上弧线向列车方向做圆形转动
C.
夜间黄色灯光高举至头上左右摇动
D.
夜间白色灯光做圆形转动
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反馈参考答案：
举一反三
【单选题】-What’s seven and two? -________. [ ]
A.
It’s five
B.
It’s six
C.
It’s nine
D.
It’s zero
【判断题】If Good 1 is on the horizontal axis and Good 2 is on the vertical axis, then an increase in the price of Good 1 will not change the horizontal intercept of the budget line.
A.
正确
B.
错误
【单选题】The slope of the production function with capital per worker on the horizontal axis and output per worker on the vertical axis
A.
is positive and gets steeper as capital per worker rises.
B.
is positive and gets flatter as capital per worker rises.
C.
is negative and gets steeper as capital per worker rises.
D.
is negative and gets flatter as capital per worker rises.
【单选题】In Cathline's demand curve, the vertical axis represnet ( ), and the horizontal axis represent ( )
A.
quantity, expectation
B.
quantity, price
C.
income, quantity
D.
price , quantity
【简答题】作业 :6 一 . 填空题 1. 曲轴飞轮组主要由( )和( )以及其它不同作用的零件和附件组成。
【判断题】If good 1 is on the horizontal axis and good 2 is on the vertical axis, then an increase in the price of good 1 will not change the horizontal intercept of the budget line.
A.
正确
B.
错误
【单选题】What’s the weather like today?
A.
It’s Sunday.
B.
It’s Sunny.
C.
It’s July 31 st .
D.
It’s exciting.
【单选题】With consumption on the vertical axis and leisure on the horizontal axis, the slope of the budget line is equal to
A.
w .
B.
-w .
C.
π .
D.
-π .
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