What are pollinators?

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问题 What are pollinators?
  
Rowers are known to employ all manner of trickery to attract pollinators, from taking the shape of an insect mate to emitting wafts of rotting flesh. A South African flower lures in its main pollinators, Desmometopa flies, with the scent of a fresh meal. The flower produces a cocktail of chemicals that mimics those released by a wounded honey bee, drawing flies into a pollen-coated chamber.
Despite the unprecedented speed of scientific development in the 21st century, many biomedical devices still used by doctors are based on technologies from the 1980s. For example, when a patient comes in with a brain injury, one key concern for surgeons is tracking and managing pressure inside the skull.

选项 A、There is a great leap in technology.
B、The brain surgery is too complicated.
C、The medical devices should be improved.
D、The pressure of the skull is hard to control.

答案C

解析 从衔接词Despite可以知道本段内容强调了生物医药设备的滞后性。For example后面的内容是对前面观点的具体解释说明。
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