下列哪项不是围绝经期症状
A．月经紊乱
B．潮红、潮热
C．精神神经症状
D． * * 不规则出血
E．泌尿、生殖道症状
参考答案：D
–Why were you late for school this morning?
–I got up very early this morning, ________ I didn’t catch the first bus.
A．and
B．but
C．or
D．so
13号从板各部磨耗大于（）时堆焊后加工。
A.2mm
B.3mm
C.4mm
