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湿地与森林、海洋被并称为全球三大生态系统，其在防洪、抗旱、调节气候、控制污染等方面具有其他生态系统所不可替代的功能和效益，被誉为地球之“肾”。据此回答24—25题。 小题1:下列地理事物中都属于湿地的是： ① 纳木错 ② 滩涂 ③ 黄河 ④ 渤海 ⑤ 水稻田 A．①②③④ B．②③④⑤ C．①③④⑤ D．①②③⑤ 小题2:我国政府下令停止开垦三上的沼泽地，主要原因是： A．三的土壤十分贫瘠 B．开发的成本太高 C．粮食过剩，价格下降 D．为了保护、改善生态环境
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皮皮学刷刷变学霸
举一反三
【简答题】求解逗号表达式 x=a=3,6*a 后,表达式值、x、a 的值依次为 。逗号运算符应先求解逗号前面的,求出后变量经重新赋值,在计算逗号后面的。
【单选题】The country's gross domestic product was more than economists______for the first quarter.
A.
wanted
B.
thought
C.
expected
D.
announced
【单选题】The difference between a country's Gross National Product (GNP) and its Gross Domestic product (GDP) is that
A.
GNP refers to production within the nation while GDP refers to production by domestic factors no matter where they are located.
B.
GNP is always bigger than GDP.
C.
GDP refers to production within the nation while GNP refers to production by domestic factors no matter where they are located.
D.
Two of the above are true.
【单选题】The birth rate in a city ________ to fall as its gross domestic product (GDP) rises steadily.
A.
estimates
B.
anticipates
C.
assumes
D.
tends
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