问题 判断题

()从进入机房起供电系统的中性线(N)与保护线(PE)应始终分开。

答案

参考答案:对

写作题

假如你是Simon,你住在Blue Sky City,在过去的十年里,Blue Sky City发生了巨大的变

化:马路、环境、生活、交通……,这种变化既带来了好处也带来了许多麻烦……(字数不得少于80字)

Blue Sky City: Past and present

                                                                               

                                                                               

                                                                               

                                                                               

                                                                               

                                                                               

                                                                               

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判断题