隐匿性肾炎( )
A.C3一过性降低,8周后恢复正常B.C3持续性降低C.C3在肾炎活动时降低明显,肾炎控制后有回升趋势D.C3一般不降低E.C3增高
参考答案:D
支气管扩张症的发病机制与哪些因素有关()。
A.先天性因素
B.病变范围
C.病程长短
D.病变程度
E.起病时年龄的大小
The new railway winds its way to Hong Kong, _____ Mountains _____ tunnels and _____ rivers. [ ]
A. across; over; through
B. over; across; through
C. over; through; across
D. through; over; across