用于防止人身触电事故的漏电保护装置应优先选用高灵敏度保护装置,高灵敏度保护装置的额定保护动作电流不应超过( )mA。
A.150
B.100
C.50
D.30
参考答案:D
Being a parent is not always easy, and being the parent of a child with special needs often carries with ____
extra stress. [ ]
A. it
B. them
C. one
D. him