Pests & Facilities第 126 / 240 题
Which of these is a sign of a rat infestation, a major concern in NYC?
a.Burrows near the foundation and large droppings the size of a raisin
b.A faint lemon scent in the dining room
c.Neatly stacked, sealed containers
d.Freshly painted walls
解析
Rats leave large droppings (about the size of a raisin), dig burrows near foundations and walls, gnaw large holes, and follow greasy runways. Spotting these signs requires immediate sanitation and a licensed exterminator. A pleasant scent, sealed storage, or fresh paint are not infestation indicators.
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