普通级兔与清洁级小鼠不能在同一单元的不同房间内饲养或做实验。
参考答案:对
A ______ consists of the symbols, characters, and usage roles that permit people to communicate with computer.
A.programming language
B.network
C.keyboard
D.display
遗传性球形细胞增多症的临床特点包括()、()、()、()。