设\(\alpha \) 与\(\beta \)为常数，则\(\int\!\!\!\int\limits_D {[\alpha f(x,y) + \beta g(x,y)]d\sigma = \alpha \int\!\!\!\int\limits_D {f(x,y)d\sigma + \beta \int\!\!\!\int\limits_D {g(x,y)d\sigma } } } \)
设\(\alpha \) 与\(\beta \)为常数，则\(\int\!\!\!\int\limits_D {[\alpha f(x,y) + \beta g(x,y)]d\sigma = \alpha \int\!\!\!\int\limits_D {f(x,y)d\sigma + \beta \int\!\!\!\int\limits_D {g(x,y)d\sigma } } } \)
如果在D上，\(f(x,y) \le g(x,y)\)那么\(\int\!\!\!\int\limits_D {f(x,y)d\sigma } \ge \int\!\!\!\int\limits_D {g(x,y)d\sigma } \)
如果在D上，\(f(x,y) \le g(x,y)\)那么\(\int\!\!\!\int\limits_D {f(x,y)d\sigma } \ge \int\!\!\!\int\limits_D {g(x,y)d\sigma } \)
运行“LIMITS”
运行“LIMITS”
AutoCAD设置绘图范围的命令是(),若选用metric(公制),默认的绘图范围是() A: LIMITS 12X9 B: LIMITS 420X297 C: LIMITS 297X210 D: ZOOM 420X297
AutoCAD设置绘图范围的命令是(),若选用metric(公制),默认的绘图范围是() A: LIMITS 12X9 B: LIMITS 420X297 C: LIMITS 297X210 D: ZOOM 420X297
中国大学MOOC: Speed limits could rise with more people using self-driving cars. When self-driving cars prove they can 6) ______ at higher speed limits, speed limits could be raised.
中国大学MOOC: Speed limits could rise with more people using self-driving cars. When self-driving cars prove they can 6) ______ at higher speed limits, speed limits could be raised.
若\(f\)和\(g\)在区域\(D\)上可积，且\( f \le g \) ，则\( \int\!\!\!\int\limits_D {fd\sigma } \)和\( \int\!\!\!\int\limits_D {gd\sigma } \)的大小关系为（ ）。 A: \( \le \) B: \( \ge \) C:
若\(f\)和\(g\)在区域\(D\)上可积，且\( f \le g \) ，则\( \int\!\!\!\int\limits_D {fd\sigma } \)和\( \int\!\!\!\int\limits_D {gd\sigma } \)的大小关系为（ ）。 A: \( \le \) B: \( \ge \) C:
Challenge the limits 挑战 _____。（三星）
Challenge the limits 挑战 _____。（三星）
在模型空间中设置了LIMITS后,在图纸空间中就不用设置LIMITS了
在模型空间中设置了LIMITS后,在图纸空间中就不用设置LIMITS了
A scarceresource limits the production or sale of a product or service.
A scarceresource limits the production or sale of a product or service.
（）命令可以设置图形界限；（）命令可以显示图形界限。 A: Limits；全部缩放 B: Options；范围缩放 C: Limits；范围缩放 D: Options；全部缩放
（）命令可以设置图形界限；（）命令可以显示图形界限。 A: Limits；全部缩放 B: Options；范围缩放 C: Limits；范围缩放 D: Options；全部缩放