Many of the items will be used for ___________ and research, but the rhino horn will be destroyed.
举一反三
- The idea that electricity cannot be created or destroyed may seem to imply that electrons and protons cannot be created or destroyed.
- It was difficult to ________ how many trees had been destroyed.
- Research has produced many new _______ that will be used in the manufacture of a variety of goods. A: hypotheses B: summaries C: synthetics D: emphases
- To _____ the ambiguity of a horn or buzzer, a voice message system is used in most airliners.
- Many people are concerned about how many forests are destroyed or ________ every year.