We use ______ to work out how far a star is from us.
A. kilometres
B. metres
C. light-years
D. months and years
查看答案
Meeting Hall Multi-language instant translation system, 4th floor
A. Translation is done at the same time.
B. Speeches will be translated later.
C. You will get translated version right away.
A) universally C) absolutely B) primarily D) subsequently
A. universally
B. primarily
C. absolutely
D. subsequently
According to the passage, which statement is tree
A. If the product is in short supply compared with demand, the producers are unlikely to increase its production.
B. Producing more of a commodity results in elimination of parts of goods.
Consumers' demands actually control the 'price of the commodity.
D. Price may reflect the relationship between supply and demand directly.
Man has known that ______.
A. the Milky Way is the only galaxy
B. other galaxies are near ours
C. the sun is a large star in the Milky Way
D. the earth is a small part of the universe