南京地铁一号线列车设计构造速度为()km/h。
A.60km/h
B.70km/h
C.80km/h
D.90km/h
参考答案:D
I can't jump in the pool, the water is ___________ cold.[ ]
A. too
B. very
C. to be
D. that
患者,男,62岁,缺失,缺牙区牙槽嵴条件好,牙龈萎缩,近中舌侧倾斜,前牙区口底较深,基牙,行大支架连接的可摘局部义齿修复
向缺隙侧倾斜,用导线观测器观测,属第几型观测线()
A.一型观测线
B.三型观测线
C.五型观测线
D.二型观测线
E.四型观测线