能将X线直接转换成电信号的是()
A.胶片
B.IP
C.非晶硒FPD
D.荧光屏
E.电视
参考答案:C
解析:非晶硒光电导体材料,它能将X线直接转换成电子信号。
My English teacher offers free face-to-face lessons on weekends, mainly helping those ____ abroad very soon.
A.working
B.work
C.to work
D.will work
治疗新生仔畜窒息时的呼吸兴奋药是()。
A.尼可刹米
B.士的宁
C.地塞米松
D.肾上腺素
E.咖啡因