寿眉：由制“银针”时采下的嫩梢经（）后剩下的叶片制成。
参考答案：“抽针”
Psychologists are also________ that both language and learning are in some sense social phenomena. [ ]
A. aware
B. accused
C. tired
D. ashamed
埋弧焊时，为了减少或免除定位焊缝和减少焊接变形，常选用（）。
A.焊接夹具
B.滚轮架
C.翻转机
