问题
判断题
Ⅲ类为低危险射线装置,事故时可以使受照人员产生较严重放射损伤,大剂量照射甚至导致死亡。
答案
参考答案:错
Ⅲ类为低危险射线装置,事故时可以使受照人员产生较严重放射损伤,大剂量照射甚至导致死亡。
参考答案:错
完型填空。 | ||||
I think the best place to go on Sunday is the zoo. When you are __1__, you can go there with your family. __2__ the zoo, there are many animals: elephants, deer, __3__, rabbits and other animals. Elephants are the __4__ animals on land. I __ 5__ there is a baby elephant in our zoo. So I want to __6__at it. Yu Xuan wants to go with me. She says, " __7__we go there together?" "Sure!" I say. " We can __8__ a good time there. But let's __9__ there at half past four. I have __10__ homework to do." | ||||
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