Then they put one of the rats from each pair into a small container(容器) in the cages. The small container had a door. It was so designed as to fall to the side when the free rat touched it. Many of the trapped(困住的) rats squeaked(吱吱叫) to show their discomfort. The other...
The rats were held prone on a plastic rack large enough to support their body (26 Â 13 cm2), and their head, limbs, and torso were taped gently but securely to the rack. After 30 min, the rat was returned to the bucket for four 30- min recovery samples. NE in the dialysate ...