皮皮学，免费搜题
登录
搜题
【判断题】
( ) 焊接产生的弧光是由紫外线和红外线组成的。A.
正确
B.
错误
手机使用
分享
复制链接
新浪微博
分享QQ
微信扫一扫
反馈参考答案：
举一反三
【简答题】custom
【简答题】考考你的阅读能力。正确的写“T”，错误的写“F”。 Linda is a nice girl. Her hobby is telling riddles (谜语). She often reads riddles to her classmates. She took a holiday last week. This is the dialogue between Linda and Mike....
【简答题】When I tell people I wrote a book with my dad, they usually say, “It must be nice to think of the legacy ( 留下来的东西 ) you created with someone who means so much to you.” This was a beautiful idea, but i...
【简答题】Directions:Fill in the blanks with a word or a phrase that best completes the passage.You may choose a suitable one from the list given. While share on unique W...
相关题目：
参考解析：
知识点：
题目纠错 0
发布
