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【单选题】
函数wx.scanCode(Object object)的参数属性object.success 回调函数的参数属性（ ）表示扫码的字符集A.
result
B.
scanType
C.
charSet
D.
path
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知识点：
皮皮学刷刷变学霸
举一反三
【单选题】The marginal rate of technical substitution is
A.
the rate at which the firm can substitute labor for capital while holding total cost constant
B.
the rate at which the firm can substitute labor for capital while holding output constant
C.
the slope of the isocost curve
D.
both a and c
【单选题】The marginal rate of substitution is
A.
the slope of the utility curve
B.
the slope of the contract curve
C.
the slope of the utility possibilities curve
D.
none of these answer options are correct.
【单选题】The marginal rate of substitution is
A.
the rate at which the consumer will give up one good to get an additional unit of another good while remaining on the same indifference curve.
B.
the rate at which utility increases as the consumer increases purchases of a good, holding purchases of the other good constant.
C.
the rate at which a consumer will exchange a good for income holding prices constant.
D.
None of the above answers is correct.
【单选题】The marginal product of labor in the production of computer chips is 50 chips per hour. The marginal rate of technical substitution of hours of labor for hours of machine-capital is 1/4. the marginal...
A.
50
B.
100
C.
150
D.
200
【单选题】The marginal rate of substitution is equal to the
A.
slope of the demand curve.
B.
marginal cost of each good.
C.
magnitude of the slope of the indifference curve.
D.
relative prices of the two goods.
【单选题】If the marginal rate of technological substitution (MRTS) is more than the price ratio of labor over capital (w/r), then to minimize cost the firm should ______ the input of capital and ______ the inp...
A.
increase, decrease
B.
decrease, increase
C.
decrease, decrease
D.
increase, increase
【多选题】关于理想信念的作用和意义,下列说法具有积极意义的是
A.
“梦想”比闹钟更容易让人早起
B.
缺乏理想，人也可以活的很潇洒。所以没必要为理想的有无而烦恼
C.
理想可以使人活得更优秀，这是人的本质属性所决定
D.
理想信念可以使人有效摆脱生活中鸡毛蒜皮的琐碎事情的烦恼
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