题目

如下图所示的流程图：该算法完成的功能是（ ） A . 计算y=1＋2＋3＋4＋5 B . 计算y=1×2×3×4×5 C . 计算y=1＋2＋3＋4 D . 计算y=1＋3＋5＋7 答案：C In extreme weather, a worn tyre can break easily ______ it’s mended, as is often the case. A. when                      B. where                C. which                   D. that