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刷刷题刷刷变学霸
举一反三
【单选题】Section BDirections: There are 2 passages in this section．Each passage is followed by some questions or unfinished statements．For each of them there are four choices marked A, B, C and D．You should de...
A.
to be collaborative and altruistic
B.
to act independently and individually
C.
to understand cooperation just as man does
D.
to know how to achieve success with coordinated action
【单选题】Half of world’s primates face extinction Almost 50% of the world’s 634 primate (灵长类动物) species face extinction, according to a report from the International Union for the Conservation of Nature. Habit...
A.
they make too much noise for people to bear
B.
there is demand for monkey meat and baby monkeys for pets.
C.
they are too small to survive the severe environment.
D.
they are easily tracked down by other big animals.