患者从高处坠地后,腰以下各种感觉均消失,伴排尿障碍,其感觉障碍的类型为()
A.神经根型
B.内囊型
C.脊髓横断型
D.脑干型
E.皮质型
参考答案:C
给下列句子排序。
a. May I have a pencil,please?
b. May I have a pen,please?
c. Sure.
d. I'm sorry. I don't have a pen. I have a pencil.
e. You're welcome!
f. Thank you!
正确的顺序为: _____________________________________
自由落体运动的v-t图象应是( )