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【单选题】
下列食物中，属于少渣饮食的是A.
苹果
B.
芹菜叶
C.
面包
D.
牛腱子
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举一反三
【简答题】_________是无线传感节点中负责计算的核心。
【单选题】If total spending rises from one year to the next, then
A.
the economy must be producing a larger output of goods and services.
B.
either the economy must be producing a larger output of goods and services, or goods and services must be selling at higher prices, or both.
C.
employment or productivity must be rising.
D.
goods and services must be selling at higher prices.
【简答题】The table shows household spending on various items as a percentage of the total in a Chinese city in 1990 and 2005. Summarise the information by selecting and reporting the main features and by makin...