脊髓颈膨大()
A.相当于颈、臂丛发出的部位
B.位于颈脊髓节段之间
C.是含脊髓灰质侧柱所致
D.与上肢的发达有关
E.上起枕骨大孔,下达第7颈椎
参考答案:A, D
— What about your self-drive trip yesterday?
— Tiring! The road Was being widened,and we _________ rough ride.
A.have
B.would have
C.had
D.have had
正常注水井发现注水超现场与测试注水量规定误差,应落实变化原因,在排除()、()等影响因素后,在()进行()或()测试。