Isn’t there a quiz every day in the chemical industry zone?

2010-05-25View Original

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Are there quiz questions in the chemical industry zone every day? It’s quite useful for me; why can’t I find it now?

Reply #22010-05-26

Because these activities have been shut down.

Reply #32010-05-26

I haven’t seen it for a long time; it seems to be gone now

Reply #42010-05-31

Reply to 2# kzb7054: Why shut them down? I think these activities are quite good

Reply #52010-05-31

Reply to 4# Qia Classmate: It’s the administrator’s requirement; I don’t know why either

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Isn’t there a quiz every day in the chemical industry zone?

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