如图所示的电路中,属于两灯串联的是[ ]
A.
B.
C.
D.
B
—I think pop music is pleasant.
—_________ I think it is just so-so.
A.I think so.
B.I don’t think so.
C.I agree with you.
D.Yes, you are right.
脊髓外肿瘤压迫脊髓后出现的症状,下列描述中哪项是不正确的()
A.根性疼痛明显
B.病程缓慢进展
C.脑脊液蛋白增高,细胞数目正常
D.晚期出现括约肌功能障碍
E.痛温觉和运动障碍由上向下发展