我市约有495万人口,用科学记数法表示为______人.
495万=4 950 000=4.95×106人.
故填4.95×106.
在对话的空白处填入适当的句子,使对话意思完整,每空一句。
A: Morning! Granny, You look so pale. (1)______________
B: Oh, boy. It's difficult for me to breathe.
A: (2) ______________
B: I've been like this since last month.
A: That's too bad. Did you sleep well last night?
B: (3) ______________ I can't sleep well at night because of the factory noise.
A: Pollution causes too many problems. I can't stand the environment here, either.
B: Shall we write to the newspaper about the problems?
A: (4) ______________ But I am afraid you have to see a doctor first.
B: (5) ______________ Thank you!
男孩,3岁,自幼生长缓慢,多次晨起发生惊厥。来诊时见患儿矮小,肝大达肋缘下5cm,质中等,空腹血糖值为2.3mmol/L,B超:肝、肾大,肾功能示尿酸增高,轻度血乳酸增高,血气分析示酸中毒。诊断首先考虑()
A.肝功能不全
B.糖原累积症
C.半乳糖血症
D.肝豆状核变性
E.肾功能不全