邻居礼仪有许多讲究，最基本的礼仪有两点：彼此尊重、相互照顾。
参考答案：对
加锡过程中的锡尖会造成哪些后果（）。
A.焊接不牢
B.加工及成型过程中极易脱落
C.pin与pin之间的短路
D.划花针表面镀层
—We've lived here _____ 2001.
—So you've lived here _____ about five years. [ ]
A. since; for
B. for; since
C. for; for
D. since; since
