【简答题】Excel中输入公式如：=B5*（A2+A5）*10。请解释其含义。A.在剪映中添加画中画视频，可以设置画中画视频铺满画布 B.使用剪映的关键帧功能可以设置蒙版动画 C.使用剪映的色度抠图功

【简答题】Excel中输入公式如：=B5*（A2+A5）*10。请解释其含义。A.在剪映中添加画中画视频，可以设置画中画视频铺满画布 B.使用剪映的关键帧功能可以设置蒙版动画 C.使用剪映的色度抠图功能只能抠出画面中的绿色部分 D.剪映预设了11款不同的混合模式，可以帮助用户更好地制作特效视频

The question contains two separate parts: explaining an Excel formula and evaluating four statements about the Jianying (CapCut) video editing app. Let's address them sequentially.

Excel Formula Explanation

The formula =B5*(A2+A5)*10 performs a three-step calculation in Excel:

First, it adds the values in cells A2 and A5 (e.g., if A2=3 and A5=5, this step results in 8).

Next, it multiplies that sum by the value in cell B5 (e.g., if B5=2, this step gives 8*2=16).

Finally, it multiplies the entire result by 10 (e.g., 16*10=160), producing the final output in the cell where the formula is entered.

Evaluation of Jianying (CapCut) Statements

Key Takeaway: Only statement B is accurate. CapCut’s keyframe feature is essential for creating animated masks, while the other claims contain factual errors about PiP functionality, chroma key limitations, or blend mode quantities.

Have you encountered specific challenges with CapCut’s masking or keyframe tools that make these features confusing in practice?