氩弧焊工应掌握外填丝和内填丝两种基本填丝操作方法,以便在不同的焊接部位,根据实际情况选用()
参考答案:对
选出错误的一项并改正。
( ) 1. Amy cans wash the clothes.
A B C
( ) 2. I have my owns room now.
( ) 3. Come and look on my new curtains.
( ) 4. There are a big closet in my room.
( ) 5. Where are the trash bin?
以下哪项沟通技巧,通常被忽略?()
A.说
B.听
C.写
D.读