更多"For more than thirty years after as"的相关试题:
[单项选择]For more than thirty years after astronauts first set foot on the Moon, scientists have been unable to unravel the mystery of where the Earth’s only satellite came from. But now there is direct evidence that the Moon was born after a giant collision between the young Earth and another planet.
Previous studies of rocks from the Earth and the Moon have been unable to distinguish between the two, suggesting that they formed from the same material. But this still left room for a number of theories explaining how—for example, that the Moon and Earth formed from the same material at the same time. It was even suggested that the early Earth spun so fast it formed a bulge that eventually broke off to form the Moon.
Franck Poitrasson, and his colleagues at the Swiss Federal Institute of Technology have compared Moon rocks with rocks from Earth and discovered a surprising difference. They analysed the weight of the elements present in the rock using a highly accurate form of mass spe
A. the rocks from the Earth and the Moon
B. the Earth and the Moon
C. the Moon and the man-made satellites
D. the young Earth and other planets
[单项选择]More than three years after moving from Australia to this remote point of England, we are still learning how things have done here.（ ）
A. More than
B. remote
C. still
D. have done
[填空题]After more than 40 years of parallel development, the
information and life sciences — computing and biology — are
fusing into a single, powerful force that is the foundation for
the biotech century. Increasingly, the computer used to decode, 62．______
manage and organize the vast amounts of genetic information
that will be raw resource of the new global economy.
The biotech century promises great riches: genetically
engineered plants and animal to feed a hungry population; genetically 63．______
derived sources of energy and fiber to build a renewable society;
wonder drags and genetic therapies to produce healthier babies,
eliminate suffering and extended human lifespan. But a question will 64．______
gaunt us: at what cost
The new genetic commerce raises more troubling issues than
any economic revolution in history. Will the artificial creation of cloned 65．______
and transgenic animals mean
[填空题]Fifty years ago, more than 75 percent of all adult women in the U.S. had no jobs.
[简答题]It has been more than 30 years since man first landed on the moon. Some people think that space research is a waste of money. Discuss.
You should write no less than 250 words. Write your article on ANSWER SHEET 2.
