神经元细胞膜上的受体多分布在（）
A.树突膜上
B.轴膜上
C.胞体膜上
D.突触膜上
参考答案：A
34. _________ that Tom got inside the room to see what was going on.
A．So strangely did he feel
B．So strangely he felt
C．So strange did he feel
D．So strange he felt
写出氯化镁的电离方程式______．
