問題詳情

        Despite being fairly large and having an extremely broad range, the spottedsalamander is actually pretty hard to, well, spot.        They can reach 9 inches (23 centimeters) in length and are prevalent in maturedeciduous forests from eastern Canada throughout the eastern and mid-western UnitedStates. But these secretive salamanders spend almost their entire lives hiding under rocksor logs or in the burrows of other forest animals.       They will populate upland forests and mountainous regions, but are most commonin moist, low-lying forests near floodplains.        They emerge from their subterranean hiding spots only at night to feed and duringspring mating. They will actually travel long distances over land after a heavy rain tomate and lay their eggs in vernal pools and ponds.        Visually striking, these stout salamanders are bluish-black with two irregular rowsof yellow or orange spots extending from head to tail. Like many other salamanders, theysecrete a noxious, milky toxin from glands on their backs and tails to dissuade predators.Their diet includes insects, worms, slugs, spiders, and millipedes.         Spotted salamanders' numbers are generally stable throughout their range, but theyare very sensitive to changes in their ecology, and rising water acidity in certain habitatsis negatively affecting their population. The pet trade and habitat loss also take a toll.
 33. What can we NOT learn about spottedsalamanders from the passage?
(A)When they mate.
(B)The danger they cause.
(C)The threat they face.
(D)How they protectthemselves. 

參考答案

答案：B
難度：適中0.666667
統計：A(6),B(44),C(7),D(4),E(0)

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