. Physicists have made new discoveries that challenge our ______ theories of the universe.
举一反三
- Physicists have made new discoveries that challenge our（）theories of the universe. A: existed B: adapted C: accepted D: established
- The new discoveries there have ____ greatly to our knowledge of the ancient civilization in China. A: attached B: proceeded C: added D: contributed
- What do both theories assume to be true A: That new material is continually being formed. B: That, in time, the universe will contract. C: That the universe is expanding at present. D: That "a big bang" started the expansion.
- A series of brilliant scientific discoveries _____ made by them. A: have B: was C: has D: are
- Which of the following sentences belong to parallelism?( ) A: You have made our social fabric stronger, our families healthier and safer, our people more prosperous. B: I have steered my course by our enduring values. C: Our economy is breaking records, with more than 22 million new jobs, the lowest unemployment in 30 years, the highest home ownership ever, the longest expansion in history. D: I have sought to give America a new kind of new time, always putting people first, always focusing on the future.