因定位或对中偏差及清除可见缺陷所进行的焊缝修补,在修补后要目检整个接头,这种情况的返修称为()
A.修整
B.校正
C.调整
D.修补
参考答案:C
中药五倍子与哪些药物同用可加重对肝脏的毒性
A.四环素
B.利福平
C.异烟肼
D.氯丙嗪
E.无味红霉素
______ the 1500s ______ the first European explored the coast of California.
A.It was not until... when
B.It was until... when
C.It was not until... that
D.It was until... that