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English Translations » 历史存档[信息] » Environmental Protection Tip of the Day 2.20: Reward for par

Environmental Protection Tip of the Day 2.20: Reward for participation, plus an additional reward for answering 5 questions correctly

2016-02-20View Original

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This post was last edited by wamj6566 on 2016-2-20 at 10:44. Multiple-choice question: The \"International Day for the Protection of the Ozone Layer\" falls on （ ） every year. A、January 16th B、September 16th C、October 16th D、December 26th B
Reply #22016-02-20
International Ozone Layer Protection Day is observed on (B) every year. A、January 16th B、September 16th C、October 16th D、December 26th

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Translated at 2026-07-21 00:49:52

Original: https://bbs.hcbbs.com/thread-1555427-1-1.html

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