按突起的数目，可以将神经元分为
ABC
神经元有各种不同的形态，按突起的数目，可以将神经元分为单极细胞、双极细胞和多极细胞。
I found ________ to answer all the questions within the time given.
Hardly had he finished his speech ________ the audience started cheering.
Only a(n) ________ few were invited to the dancing party.