题目内容

The challenge to Walmart in China mentioned by its CEO is China's big geography. In other words, among different cities, helping customers save money and serving them in a local way are challenging to this American company.

A. 对
B. 错

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The mission for Walmart is to help people save money and live better.

A. 对
B. 错

In the past more than fifty years, Walmart has taken some changes to meet the needs of customers, including the recent investment in e-commerce.

A. 对
B. 错

（）起支持导线和接闪线及其附件，并使导线、架空地线、杆塔之间，以及导线和地面及交叉跨越物或其他建筑物之间保持一定的安全距离。

用来支承或悬吊导线，使之与杆塔绝缘，保证线路具有可靠的电气绝缘强度的原件是（）和（）。