中国大学MOOC: These developments were supposed to alleviate the energy security concerns that the U.S. faced after the 1970s.
举一反三
- These developments were supposed to alleviate the energy security concerns that the U.S. faced after the 1970s. A: aggravate B: ease C: enhance D: eradicate
- 中国大学MOOC: An unmanned cockpit will pose security concerns when _____.
- 中国大学MOOC: The Fisherman’s Wharf is located in __________ in the U.S.
- 中国大学MOOC: The U.S. is the world’s greatest power and the world’s greatest debtor.
- 中国大学MOOC: According to the text, which of the following is a factor contributing to the enterprises’ security concerns?