题干

宋代人口有1亿,耕地面积5.6亿亩;鸦片战争前,清代 人口达到4亿,耕地只有11~12亿亩。相对于宋代,清代养活这么多人口主要依靠(  )
①改进生产工具②精耕细作  ③推广玉米、蕃薯等高产作物④扩大海外贸易

A:①②③

B:②③

C:①③④

D:①②③④

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答案(点此获取答案解析)

B

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    I was waiting for a phone call from my agent. He had left a message the night before, telling me that my show was to be cancelled. I called him several times, but each time his secretary told me that he was in a meeting and that he would call me later. So I waited and waited, but there was still no call. Three hours passing by, I became more and more impatient. I was certain that my agent didn't care about my work, and he didn't care about me. I was overcome with that thought. I started to shout at the phone, “Let me wait, will you? Who do you think you are?”

    At that time I didn't realize my wife was looking on. Without showing her surprise, she rushed in, seized the phone, tore off the wires, and shouted at the phone, “Yeah! Who do you think you are? Bad telephone! Bad telephone!” And she swept it into the wastebasket.

    I stood watching her, speechless. What on earth...?

    She stepped to the doorway and shouted at the rest of the house, “Now hear this! All objects in this room---if you do anything to upset my husband, out you go!”

    Then she turned to me, kissed me and said calmly, “Honey, you just have to learn how to take control.” With that, she left the room.

    After watching a crazy woman rushing in and out, shouting at everything in sight , I noticed that something in my mood (情绪) had changed. I was laughing. How could I have trouble with that phone? Her anties helped me realize I had been driven crazy by small things. Twenty minutes later my agent did call. I was able to listen to him and talk to him calmly.