He was an early _______ of the theory that life on Earth may have come from Mars.
举一反三
- Some scientists think there may have been life on the Mars in the past because （） A: there is no life there now B: there is a large amount of water at the poles C: the Mars may be able to support life in the future D: conditions may have been similar to those on the Earth
- Why is the second theory sometimes referred to as the Mars Theory A: Earth's moon used to orbit Mars. B: Mars was captured by the gravitational field of the Sun, C: A planet the size of Mars collided with Earth. D: Mars is larger than Eart
- If he had considered the problem more carefully , he ______ the correct conclusion . A: minght have come to B: may have come to C: would come to D: could come to
- In the lecture, we have introduced a book by John Gray. And in the book, he thinks that women and men may come from different planets. Men are from the _____, while women are from the Venus.
- Now a paper argues that organic chemicals in the rock come mostly from ______ on earth rather than bacteria on Mars. A: configuration B: constitution C: condemnation D: contamination