钕铁硼镀锌镀件钝化的常见品种为蓝白钝化和()钝化。A、黑色 B、红色 C、彩色 D、紫色 发布时间:2018-01-26 11:41 │ 来源:www.tikuol.com 题型:单项选择题 问题: 钕铁硼镀锌镀件钝化的常见品种为蓝白钝化和()钝化。A、黑色B、红色C、彩色D、紫色
题型:单项选择题 28.Kids are often told to remain ______ they are and wait for their parents if they get lost.A.whatB.where C.howD.Who 查看答案