川黔渝加强交流与合作，让民众出行的脚步更加欢快。 李兴旺表示，希望广大科技工作者、企业家和与会代表，积极抓住这次大会机遇，与国内外专家深入开展技术交流与合作，不断提升我国肉牛产业的科技水平。
几千块的山地自行车比几百块的山地自行车好在哪？二楼除模型外，还有《空天宝贝登月吧》《飞船升空了》《带我去月球》等书籍。走近一看，一名身穿环卫工作服的中年男子一边干活（见左图），一边吼着秦腔，一旁路人拍手鼓掌。
解方程组x-3y=32x+y=-2？ To solve the system of equations x - 3y = 32 and x + y = -2, we can use the method of substitution or elimination. Method 1: Substitution Step 1: Solve one equation for one variable in terms of the other variable. From the second equation, we have x = -2 - y. Step 2: Substitute the expression for x into the other equation. In the first equation, replace x with -2 - y: (-2 - y) - 3y = 32. Step 3: Simplify and solve for y. -2 - y - 3y = 32 -2 - 4y = 32 -4y = 34 y = -34/4 y = -17/2 Step 4: Substitute the value of y back into one of the original equations to solve for x. Using the second equation: x + (-17/2) = -2 x - 17/2 = -2 x = -2 + 17/2 x = -4/2 + 17/2 x = 13/2 So the solution to the system of equations is x = 13/2 and y = -17/2. Method 2: Elimination Step 1: Multiply the second equation by 3 to make the coefficients of y in both equations equal. Original equations: x - 3y = 32 and x + y = -2. After multiplying the second equation by 3: 3x + 3y = -6. Step 2: Add the two equations together to eliminate the y terms. (x - 3y) + (3x + 3y) = 32 + (-6) 4x = 26 x = 26/4 x = 13/2 Step 3: Substitute the value of x into one of the original equations and solve for y. Using the second equation: (13/2) + y = -2 y = -2 - 13/2 y = -4/2 - 13/2 y = -17/2 So the solution to the system of equations is x = 13/2 and y = -17/2.（5）注意休息，不要过度疲劳。先后荣获“江苏制造突出贡献奖先进单位”、南通市“2022年度银行业支持制造业先进单位”等荣誉称号。