已知一元二次方程x2+3x+m=0的一个根为-1，则另一个根为__________.
Dr. Yuan was born in Beijing in 1930. 61 he graduated from Southwest Agricultural College in 1953, he has given his life to 62 ( find ) ways to grow more and more rice. As a young man, he saw the g
. It is reported that two hotels，_____ are being built in my hometown，will open next year. A．they both B．which both C．both of them D. of which both
（4分）根据如图所示的流程图计算，若输入x的值为—1，则输出y的值为 若输入x的值为7，则输出y的值为
下图为我国某区域某时海平面等压线分布示意图。读图完成下列问题。 （1）此时重庆的风向是_ __；A锋面系统类型为__ __，在其过境时，重庆的气
Congratulations on deciding to visit the Big Apple. Whether you choose to spend time in the Metropolitan Museum of Art or an S&M club in the West Village, or both, you’re in for quite an expe
用电压表测某段电路两端电压时，指针反向偏转，产生这种现象的原因是___________。读出图9电压表的示数为 V，电流表的示数为 A。
