问题
选择题
下列有关神经兴奋的叙述，正确的是[ ]
A．组织液中Na+浓度增大，则神经元的动作电位增大
B．静息状态时神经元的细胞膜对葡萄糖没有运输能力
C．突触间隙中的神经递质经主动运输穿过突触后膜而传递兴奋
D．神经纤维接受刺激产生的兴奋以化学信号的形式传导
答案
答案：A
搜题请搜索小程序“爱下问搜题”
下列有关神经兴奋的叙述，正确的是[ ]
A．组织液中Na+浓度增大，则神经元的动作电位增大
B．静息状态时神经元的细胞膜对葡萄糖没有运输能力
C．突触间隙中的神经递质经主动运输穿过突触后膜而传递兴奋
D．神经纤维接受刺激产生的兴奋以化学信号的形式传导
答案：A
| 完形填空。 | |||
| I have a friencl. His name is Ben. He is __1__ boy. He is thirteen __2__ old. He is __3__ Class Three, Grade Seven. He is in Beijing now. He __4__ action movies. He often __5__ to a movie __6__ his sister. __7__ he likes Beijing Opera. He thinks Beijing Opera is very __8__ . He says he can __9__ about Chinese history. So he goes to __10__ Beijing Opera every Saturday. | |||
| ( ) 1. A. a English ( ) 2. A. year ( ) 3. A. on ( ) 4. A. like ( ) 5. A, goes ( ) 6. A. and ( ) 7. A. But ( ) 8. A. boring ( ) 9. A. learn ( ) 10. A. sees | B. an English B. years B. of B. likes to B. going B. or B. And B. scary B. learns B. looks | C. an Chinese C. very C. in C. likes C. go C. with C. Or C. interesting C. to learn C. seeing | D. a hisLory D. month D. about D. is D. is going D. of D. With D. difficult D. learned D. see |
