单项选择题

It can be inferred that the development of a fetal liver depends on ______.

A．how many months pregnant the mother is
B．how much alcohol the mother has consumed
C．how large the fetus is
D．how well the mother has taken care of the fetus

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热门试题

单项选择题

With the plus ( + ) sign added to the search string, a search engine can ______.

A．omit all the irrelevant information
B．find pages containing all the words or phrases in the search string
C．give you only very limited information
D．sometimes find no hits

单项选择题

The purpose of this passage is to provide you with information on ______.

A．how to reduce the number of hits
B．how to find videos of humpback whales in the North Atlantic
C．the importance of maths in building a search string
D．how to use search engines on the Web more efficiently