获得中级导游资格证书4年后,业绩突出,水平较高,在国内外同行中有一定影响,业务考核和素质考试合格者可晋升为高级导游人员
参考答案:对
She was the first about it.
A.to learn
B.learning
C.learning
D.to have learned
焊接接头的基本型式有对接接头搭接接头、()T型接头等四种。