Given the seeming intelligence of cetaceans, people are always tempted to compare them wit
The word "dominant" in the passage is closest in meaning to
A.local
B.natural
C.chief
D.specific
The word "dominant" in the passage is closest in meaning to
A.local
B.natural
C.chief
D.specific
第1题
It's important that the clients ______interested.
A.are seeming
B.will seem
C.is seeming
D.seem
第2题
A.Some behaviors seeming strange at first can be accepted as time goes on.
B.Living in a small town has many unmatched advantages.
C.Walking is a good way to go about one's business in the neighborhood.
D.People still have many to enjoy even living in a small town.
第3题
How do people show the right level of energy without seeming over the top?
A.By underestimating the energy level.
B.By estimating an energy scale.
C.By undervaluing the energy level.
D.By using a lower level of energy.
第4题
Metaphor, different from simile, is basically ___________.
A.a comparison between seemingly unrelated things
B.a device to create a literary atmosphere
C.an expression of something invisible via the visible
D.a literary device to reveal a hidden reality
第5题
What do we know about the old Barnes from the fifth paragraph?
A.It is a good example of the great modern museums.
B.It is downgraded by the mixture of different paintings.
C.The world-famous painters' works make it a charming place.
D.It is the seeming imperfection that makes it attractive.
第6题
This is the ninth of the "Contemplations" written by an early American woman writer. What is her name?
第7题
But by far tile most startling and tentative finding is that the universe has a preferred orientation. Such directionality would challenge one of the basic tenets of physics and astronomy, taken for granted by Einstein, Newton and even Kepler. These giants all assumed that space possesses a property called rotational symmetry: spin a chunk of cosmos sideways or flip it upside down, and measurements of events within it yield precisely tile same results.
In the April 21, 1997 issue of physical Review Letters, however, Borge Nodland of the University of Rochestre and John P. Ealston of the University of Kausas present evidence that the principle of rotational symmetry may be violated on a cosmic scale. Measurements of light from distant galaxies, they say, vary depending on the galaxies' position in the sky.
Other theorists doubt whether the claim will stand up to close scrutiny; at least two critical analyses have already been posted on the Internet. For the moment, however, even the critics can savor the frisson of a tremor rocking their field' s foundations. "Nobody would be happier than me if they were right," says Sean M. Curroll of the University of California at Santa Barbara.
The surprising work on cosmic asymmetry began three years ago, while Nodland was working for his doctorate under Ralston's supervision. Ina search for signs of unconventional large - scale non - uniformity, the two researchers decided to investigate whether polarized light front remote galaxies changes with their direction or distance. (Polarized light typically swings within one plane rather than in all directions, ordinary sunlight does; it can be produced by a variety of phenomena. ) Polarized light often twists as it penetrates through space as a result of its encounters with electromagnetic fields; this well- understood phenomenon is called the Faraday effect. But Nodland and Raison wondered whether additional twisting effects might be at work.
To find out, they focused on studies of galaxies that emit large amounts of synchrotron radiation, a highly polarized form. of electromagnetism generated by charged particles passing through a strong electromagnetic field. After combing through the published literature, Nodland and Ralston compiled polarization data for 160 galaxies.
Their investigation involved a crucial assumption, that the initial angle of polarization of the light relative to the plane of each galaxy was the same for all 160 galaxies. Given this assumption and the estimated distances to the galaxies (inferred from their red shifts), Nodland and Ralslon could calculate whether the light underwent any twisting other than that caused by the Faraday effect.
The departure of the splendid Hale-Bopp comet is mentioned______.
A.to honor the contributions of Hale-Bopp.
B.to introduce to the topic of new report on cosmic matters.
C.to challenge the basic tenets of astronomy.
D.to recount the reactions of the public to the comet.
第8题
A.have given
B.give
C.have been given
D.was given