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【单选题】
 哪个属性是要播放的音频的 URL( )。
A.
preload
B.
controls
C.
loop
D.
src
拍照语音搜题，微信中搜索"皮皮学"使用
参考答案：
参考解析：
知识点：
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举一反三
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A.
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B.
错误
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A.
1；
B.
；
C.
；
D.
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A.
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B.
不确定
C.
小于0.63m/s
D.
大于0.63m/s
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【单选题】A consumer surplus can be best described as:
A.
what the consumer has "left-over" after a purchase.
B.
how much extra a consumer has to pay for a product.
C.
value for the money.
D.
the premium charged for a quality product.
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【单选题】The value of a product to an average consumer is V; and the average price that the firm can charge a consumer for that product is P. Here, V - P can be termed as:
A.
consumer surplus per unit.
B.
producer surplus per unit.
C.
profit growth.
D.
profit per unit sold.
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【简答题】But if a polite complaint does not achieve the desired result, the consumer can go a step further. She or he can threaten to take the seller to court or report the seller to a private or pubic organiz...
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【判断题】对国家标准规定速度大于 0.63m/s的电梯轿厢必须采用瞬时式安全钳。
A.
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【单选题】设函数 在 处可导,且 ,则 等于
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【单选题】A consumer surplus can be best described as:
A.
what the consumer has "left-over" after a purchase.
B.
how much extra a consumer has to pay for a product.
C.
value for the money.
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【单选题】The value of a product to an average consumer is V; and the average price that the firm can charge a consumer for that product is P. Here, V - P can be termed as:
A.
consumer surplus per unit.
B.
producer surplus per unit.
C.
profit growth.
D.
profit per unit sold.
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【简答题】But if a polite complaint does not achieve the desired result, the consumer can go a step further. She or he can threaten to take the seller to court or report the seller to a private or pubic organiz...
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