在爆炸危险环境中,应采用IT系统时,可不装漏电时能自动切断电源的保护装置。
参考答案:错
I once worked in the English Department in the university but I got laid off because I _____ the courses required for further education. Meanwhile my colleagues were still there, ______ easy money. [ ]
A. hadn’t taken; making
B. didn’t take; making
C. hadn’t taken; made
D. didn’t take; made
桃仁的药理作用是()
A.催吐
B.抗惊厥
C.止泻
D.润肠缓泻
E.镇吐