感染流感嗜血杆菌的婴幼儿肺炎患者,其最常见的并发症是()
A.肾炎
B.脑膜炎
C.肝炎
D.肝性脑病
E.肺脓肿
参考答案:B
Since entry into high school the students have been ____ staying up late in the evening and getting up early in the morning.
A.admitted to
B.allergic to
C.accustomed to
D.attached to
洪水时期一日内流量变幅较大,观测或摘录时距不等时,可用()计算日平均流量。
A、直接查读法
B、算术平均法
C、面积包围法
D、水位加权法