There should be no national boundaries in _________ protection.
举一反三
- There should be no national boundaries in _________ protection.
- Please answer this question. A: Short circuit protection B: Overload protection. C: Under voltage protection. D: Thermal relays protection.
- 8 A) An environmental protection law has been passed. B) An environmental protection law needs to be passed. C) This passage is about environmental protection. D) The environmental protection law will take effect soon. A: A) An environmental protection law has been passed. B: B) An environmental protection law needs to be passed. C: C) This passage is about environmental protection. D: D) The environmental protection law will take effect soon.
- Make the choice: A: An environmental protection law has been passed. B: An environmental protection law needs to be passed. C: This passage is about environmental protection. D: The environmental protection law will take effect soon.
- The difference between international tourists and domestic tourists is whether they cross the national boundaries or not.