单项选择题

It can be inferred from the first paragraph that cosmologists ______.

A．tend to think more about philosophy than science.
B．have wrongly calculated the age of the cosmos.
C．don't know for sure about our cosmos.
D．expect to solve all the problems about nature.

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热门试题

单项选择题

Which of the following statements is NOT true of the cosmos

A．Microwaves are the medium WMAP used to make measurements.
B．Warmer spots would finally develop into the clusters of galaxies.
C．Dark energy is a decisive factor in the cosmic expansion.
D．The nature of dark matter in space is unknown to scientists.

单项选择题

We can tell from the first paragraph the author's attitude towards commercialization of the campus is one of ______.

A．nonchalance.
B．aversion.
C．exultance.
D．defiance.