下列城市中，不属于“长江沿江汽车工业走廊”的是（ ）

恒星团R136是宇宙中已知的最大恒星团。近期，天文学家利用哈勃太空望眼镜在紫外线下观测了该星团，发现其中有9颗恒星质量均大于太阳质量100倍。但是它们的形成历史却是个谜。现有的恒星形成理论不能解释这些庞然大物如何从星云和尘埃中形成，又如何聚在一起。这说明（    ）

①认识能否达到最终目的受到特定社会历史条件的制约

②现代科技手段的运用推动了有关恒星团认识的深化发展

③人类的好奇心是推动科学研究深入发展的源泉和动力

④理论完善和认识能力的提高是科学实践成功的首要因素

    Mr. Brown is a teacher. He is from New York, America. He would like（想）to work in China because he likes our country. He thinks Chinese people are very friendly and he likes to live in China. He is happy to work in our school. He likes the school life here. He teaches English. There are 50 students in his class. Mr. Brown is kind. He and his students are good friends, too.
    Now some of Mr. Brown's students play sports on the playground（操场）. Bill and Mike play tennis. Tom and John play ping-pong. The other students play basketball. Mr. Brown is happy to play basketball with them. They have a good time.
阅读上面的短文，根据短文内容，选择最佳选项。   

根据图片，补全单词
 Sc____e____ce

做一做：用硬纸板做一个圆柱形笔筒，做完后，量一量它的底面直径、底面周长和高．