化学品安全技术说明书sds是什么
1. Many have reported seeing a UFO in the west.
2. He is mysterious about his future plan.
3. There are some sightings of the escaping murderer in this region.
4. Our trip turned to be a nightmare when we lost our luggage and fell behind schedule for 2 days.
5. The government won't rul out support the project because of the exceeding cost.
6. They two play this game according to the rules.
7. When you find that there are soming useful on the Internet, you can download and save them into your personal document.
8. The factory is managed by some farmers.
9. Our teacher often does some remedial education for the students after class for free.
10. I prefer writing poems to novels....
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