问题
单项选择题
如图所示,下列有关神经肌肉接头,不正确的是()
A.接头后膜有许多皱褶,以增加与神经下间隙的接触面积
B.皱褶的突起部分含受体最多
C.皱褶的凹陷部分含乙酰胆碱酯酶最多
D.神经下间隙宽度为200~300μm
E.接头后膜是化学兴奋膜
答案
参考答案:D
如图所示,下列有关神经肌肉接头,不正确的是()
A.接头后膜有许多皱褶,以增加与神经下间隙的接触面积
B.皱褶的突起部分含受体最多
C.皱褶的凹陷部分含乙酰胆碱酯酶最多
D.神经下间隙宽度为200~300μm
E.接头后膜是化学兴奋膜
参考答案:D
选用方框中所给词的适当形式填空
小题1: I had everyone’s support because they thought my plan was _________.小题2: Tom is the __________ of the two young men.小题3: People who steal are called ____________.小题4: He is watching TV while I’m cooking ____________.小题5: _____________ with life on Mars, life on Earth may be better in some ways. |