更多"It is reported that scientists have"的相关试题:
[单项选择]Ten scientists were reported（）for their outstanding contributions at the conference.
A. to reward
B. to have rewarded
C. to have been rewarded
[单项选择]Scientists have developed glass fibers as thin as human hair which are designed to carry light signals.（ ）
A. 科学家发展出一种玻璃纤维，轻得像人的头发丝一样，可以用来设计轻型的信号装置。
B. 科学家制造出一种玻璃纤维，比人的头发丝还细，这种设计是用来传递光信号的
C. 科学家开发出像人的头发一样细的玻璃纤维来传输光信号。
D. 科学家研制出跟人的头发丝似的玻璃纤维，用在光导信号的设计上。
[单项选择]Scientists and experts have proved that the pattern of a human being's finger skin ______.
[单项选择]It's reported that scientists have found __________ proof of early men in Afric
A. A． commonplaceB. authenticC. tentativeD. marginal
[单项选择]
Scientists have established that influenza viruses taken from man can cause the disease in animals. In addition, man can catch the disease from animals. In fact, a great number of wild birds seem to carry the virus without showing an evidence of illness. Some scientists concluded that a large family of influenza viruses may have evolved in the bird kingdom, a group that has been on the earth 100 million years and is able to carry the virus without contracting the disease. There is even convincing evidence to show that virus strains are transmitted from place to place and from continent to continent by migrating birds.
It’s known that two influenza viruses can recombine when both are present in an animal at the same time, the result of such recombination is a great variety of strains containing different H and N spikes. This raises the possibility that a human influenza virus can recombine with an influenza virus from a low animal to produce an entirely new s
A. H and N spikes are produced
B. animal and bird viruses are combined
C. dissimilar types of viruses recombine
D. two viruses of the same type are contracted
[单项选择]Social scientists have recently become greatly interested in space because ______.
A. space industrialization will create new markets and more jobs on Earth
B. space exploration will be harmful to man
C. space colonization is near at hand
D. otherwise technologists will catch the opportunity to go to space
[单项选择]Many scientists have been probing psychological problems.
A. solving
B. exploring
C. settling
D. handling
[单项选择]Scientists have acknowledged that to interpret an animal's thought processes in a sound manner requires a heavy dose of-------from our own mental patterns, which we access------.
A. estimation...vicariously
B. calculation...egotistically
C. guesswork...methodically
D. inference...introspectively
E. (E) skepticism...analogously
[单项选择]The passage probably implies that scientists have been______.
