题目内容
(请给出正确答案)
[主观题]
The evidence of electrical activity and other changes in brain cells after the outside sti
mulus has been got by observing ______ .
A.exposed cat brains
B.the human brains
C.cat brains and the human brains
D.exposed cat brains and the human brains
提问人:网友xmut_lb
发布时间:2022-01-06