【題目】 華北平原某地的農事安排：秋季播種小麥；次年，春季施肥澆水，夏季收獲小麥、播種玉米，秋季收獲玉米、再播種小麥。下表示意該地的氣象數(shù)據(jù)。據(jù)此完成下面小題。

項目季節(jié)

春季

夏季

秋季

冬季

日均最高氣溫（℃）

13

28

25

8

日均最低氣溫（℃）

3

18

15

-1

平均降水量（mm）

93

372

166

63

平均風速（m/s）

3.4

1.5

2

2.8

【1】此地的作物熟制是（ ）

A.一年一熟B.一年兩熟

C.一年三熟D.兩年三熟

【2】此地小麥生長可能受旱災影響最嚴重的季節(jié)是（ ）

A.春季B.夏季C.秋季D.冬季

【答案】

【1】D

【2】A

【解析】

【1】

由題目可知，華北平原在兩年時間里種植小麥、次年再種玉米，再種小麥，作物的熟制是與兩年三熟，故選D。

【2】

由題目可知，華北平原以種植小麥為主要的糧食作物，春季時由于氣溫回升，水分蒸發(fā)快，還該地區(qū)的雨季還未到來，又是小麥的返青季節(jié)，最容易遭受的是春旱災害，故選A。

本題考查華北平原農業(yè)生產有關知識。

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