皮皮学，免费搜题
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【多选题】
关于视锥细胞的叙述,正确的有( )A.
主要分布在视网膜的中央部分
B.
中央凹处分布密集
C.
对光敏感度高
D.
能分辨颜色
E.
视网膜周缘部分
拍照语音搜题，微信中搜索"皮皮学"使用
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知识点：
皮皮学刷刷变学霸
举一反三
【单选题】Mr. Smith borrows ＄500 now and pays file money hack next year when prices have doubled, then how much will he be paying back in terms of real purchasing power measured by the money value of this year?...
A.
＄500.
B.
＄250.
C.
＄1000.
D.
＄750
【单选题】When money prices are used to facilitate comparisons of value, money is said to function as
A.
unit of account.
B.
medium of exchange.
C.
store of value.
D.
payments-system ruler.
【单选题】When money prices are used to facilitate comparisons of value, money is said to function as a
A.
unit of account.
B.
medium of exchange.
C.
store of value.
D.
payments-system ruler.
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