Shelly had prepared carefully for her biology examination so that she could be sure of passing it at her first ________.( )
A:intention
B:effort
C:attempt
D:sight
Hello! My ____ name is John. My last name is ____. I am 12. I'm in China. My telephone number is ____. I have a good friend. Her first name is ____. Her last name is Read. She's 13. She is in America. Her telephone number is ____.
1820年,安培在科学院的例会上做了一个小实验,引起了到会科学家的兴趣.如图所示,把螺线管沿东西方向水平悬挂起来,然后给导线通电,会发生的现象是( )
要求:①以“这也是我的福利”为题目写一篇600字以上的文章,文体自选。②文中不得出现真实的人名、地名、校名等透露个人身份的信息。
已知:抛物线y=ax2+bx﹣3经过点A(7,﹣3),与x轴正半轴交于点B(m,0)、C(6m、0)两点,与y轴交于点D.