特种设备生产、使用单位应当加强作业人员安全教育和培训，保证特种设备作业人员具备必要的特种设备安全作业知识、作业技能和及时进行知识更新。
参考答案：对
看图片，选择合适的单词填空完成短文。
My name is Li Ling. I am a _____________ (student / teacher). My father is a _____________ (short / tall) man. He is a _____________ (police officer / businessman). My mother is
a _____________ (doctor / bus driver). We are a _____________ (happy / sad)
family.
海水珍珠置紫外光灯365nm下观察，显（）
A.亮黄色荧光
B.亮黄绿色荧光
C.浅蓝紫色荧光
D.紫红色荧光
E.深蓝色荧光
(student / teacher). My father is a _____________ 
(police officer / businessman). My mother is 
(doctor / bus driver). We are a _____________ 
(happy / sad)