商务印书馆是我国历史最久．影响最大的出版机构。我们平常使用的字典．词典等很多书籍都是商务印书馆出版的，它每日都陪伴着我们的学习和生活。请你结合所学知识谈谈商务印书馆创办的背景。张元济弃官，投身“国民教育”，对商务印书馆及中国近代印刷出版业作出了怎样的贡献？

根据短文理解，选择正确答案。

    Many years ago, a young woman doctor named Jessie received a present-“a parrot” at her birthday party. She was always busy in the hospital and spent little time with the parrot. So over time the parrot developed a bad attitude(态度).

    It got to the point that every word out of the bird's mouth was obnoxious. Sometimes the parrot even shouted at Jessie. She tried and tried to change the bird's attitude by saying only polite words, playing soft music and anything else she could think of to “clean up” the bird's attitude.

    Finally, Jessie was angry and shouted at the parrot. The parrot shouted back. Jessie lost her temper and shook the parrot. The parrot became even more rude. Jessie threw the bird into the fridge angrily. For a few minutes the parrot kicked and screamed. Then suddenly there was total silence.

    Fearing that she'd hurt the parrot, Jessie quickly opened the door to the fridge.

    The parrot walked out onto Jessie's arms and said “I believe I may have offended(冒犯) you with my rude language and actions. I am so sorry for what I said and did just now and I will do everything I can to correct my rude attitude.”

    Jessie couldn't believe the change in the bird's attitude.

    As she was about to ask the parrot what had made such a change in his attitude, the bird spoke-up, very softly, “May I ask what the turkey did?”

大棚中种植的植物其光合作用会受到多种因素的影响，在下曲线图中，有M、N、O、P、Q五个点，对它们的含义的叙述正确的有（   ）

①M点时，植物叶肉细胞内合成ATP的场所只有线粒体
②若适当降低大棚温度，则N点将会向右移动
③O点时，限制植物体的光合作用强度的主要因素是二氧化碳浓度和光照强度
④P点时，若想提高作物产量可以适当补充光照，绿光灯效果最好
⑤Q点光照强度时，适当使用二氧化碳发生器可以提高作物产量

已知函数$f\left(x\right)$在R上可导，其导函数为$f\text{'}\left(x\right)$，若$f\left(x\right)$满足：$\left(x-1\right)f\text{'}\left(x\right)-f\left(x\right)>0$，$f\left(2-x\right)=f\left(x\right)e^{2-2x}$，则下列判断一定正确的是 （    ）

战前加入同盟国集团，一战中倒戈加入协约国作战的是