【Daily Topic】【Storage & Transportation Edition 20170531】

2017-05-31View Original

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Participation reward: 2 Wealth. Correct reward: 6 Wealth (please hide the answer.) Method: Advanced mode -- click the icon that combines a lock and a basket -- add hidden content -- submit). Note: Replies that are not hidden will no longer be rated starting from today. Multiple-choice question: How many types of common hazard signs are there? A、10 B、12 C、15 D、18 C

Reply #22017-05-31

There are (D) types of common hazard signs. A、10 B、12 C、15 D、18

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【Daily Topic】【Storage & Transportation Edition 20170531】

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