Question

求各位帮忙解释下d选项

求各位帮忙解释下d选项rt 谢谢

Answer 1

如图你就明白了，

因为f（b）不属于（a，b），所以f（b）等于多少和f（x）在（a，b）的图像没有任何关系

追答

图片把手机侧过来看(⑉°з°)-♡

Answer 2

Field 44D is "SHIPMENT PERIOD". "SEE FIELD 45" means you can find the "SHIPMENT PERIOD" in the field 45 "DESCRIPTION OF GOODS".

Answer 3

f(x)在b点处不连续，比如图中所示