阅读下面这首诗，然后回答问题。

子规①

【元】曹伯启

蜀魄曾为古帝王，千声万血送年芳。

贪夫②倦听空低首，远客初闻已断肠。

锦水春残花似雨，楚天梦觉月如霜。

催归催得谁归去，唯有东郊农事忙。

【注】①子规：即杜鹃，又名蜀魄、蜀魂、催归，相传为古蜀王杜宇所化。②贪夫，客居他乡之人。

我国幅员辽阔，东西距离5000多千米，这造成（    ）

      Lily has a pen friend in America. Her name is Alice. They write to each other every week. They tell each other about their lives. Here is a letter from Lily.

Dear Alice,

    Thank you for your letter and telling me about your best friend. In this letter, I’m going to tell you about my friend. Her name is Cathy. She has long brown hair and blue eyes. She is the same age as me, but a little taller .She is always happy. We sit together in class and help each other with our homework. We always play together after school and play computer games for an hour. Cathy thinks quickly（迅速地） and does better than me. She is learning to play the piano（钢琴）.I am learning to play the piano, too. We play together every day. It’s fun. We always have a good time.

    Please write to me soon.

                                                                                                                                                                                                   Love,

                                                                                                                                                                                                     Lily

留树保鲜是通过延迟采收保持果实品质的一项技术。喷施赤霉素和2，4-D对留树保鲜柑橘的落果率和果实内脱落酸含量的影响如图所示。下列有关分析不正确的是（   ）