鳄龟养殖龟池的设施有哪些?
- breeding pond
- observation tank
- water treatment plant
- all of the above
The correct answer is 4. All of the above.
The breeding pond is where the female turtle lays her eggs. The observation tank is where the eggs are incubated and the hatchlings are raised. The water treatment plant is used to clean the water in the pond and the tank.
