单项选择题A.They shouldn’t change their plan.B.They should change their plan.C.He doesn’t believe the weather forecast.D.He thinks the tennis game won’t last.
单项选择题A.The number of impulses transmitted to the grasshopper’s legs.B.The age of the grasshopper.C.The number of sensory organs the grasshopper has.D.The size of the nerves that control walking.