（）类射线装置一般不会造成受照射人员的放射损伤。
A.Ⅰ
B.Ⅱ
C.Ⅲ
D.Ⅳ
参考答案：C
-_____ was your day off?
-It was really _____.[ ]
A. How; boring
B. What; boring
C. How; bored
D. What; bored
道教三元节中的下元节时间是农历哪一天？
