知乎，让每一次点击都充满意义 —— 欢迎来到知乎，发现问题背后的世界。 Why do you think that westerners are usually heavier than Asians? Does one at any time order out from the cafe? 这个其实是欧拉公式，其中 表示任意实数， 是自然对数的底数， 是复数中的虚数单位，则根据欧拉公式有： rock the boat If you rock the boat, you do or say something which will upset people today or trigger challenge... https://www.ecom-group.com/training-events/sap-cloud-integration-suite-cld900/