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【题目】 华北平原某地的农事安排:秋季播种小麦;次年,春季施肥浇水,夏季收获小麦、播种玉米,秋季收获玉米、再播种小麦。下表示意该地的气象数据。据此完成下面小题。

项目季节

春季

夏季

秋季

冬季

日均最高气温(℃)

13

28

25

8

日均最低气温(℃)

3

18

15

-1

平均降水量(mm)

93

372

166

63

平均风速(m/s)

3.4

1.5

2

2.8

1此地的作物熟制是( )

A.一年一熟B.一年两熟

C.一年三熟D.两年三熟

2此地小麦生长可能受旱灾影响最严重的季节是( )

A.春季B.夏季C.秋季D.冬季

【答案】

1D

2A

【解析】

1

由题目可知,华北平原在两年时间里种植小麦、次年再种玉米,再种小麦,作物的熟制是与两年三熟,故选D。

2

由题目可知,华北平原以种植小麦为主要的粮食作物,春季时由于气温回升,水分蒸发快,还该地区的雨季还未到来,又是小麦的返青季节,最容易遭受的是春旱灾害,故选A。

本题考查华北平原农业生产有关知识。

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