原式=3+16÷(-8)+1-3×3
=3-2+1-3
=-1.
病历摘要:男性患儿,4岁,自幼右鼻塞,近半年来反复出现发热头痛并有右侧鼻孔流清水样涕,每静脉滴注抗生素后好转。复又出现发热头痛2天来就诊。查体:双侧眼距较宽;右侧鼻腔内可见粉红色肿物,质软,鼻腔内较多清亮液体。双侧瞳孔等大等圆。
关于脑膜脑膨出的类型,下列哪些说法是不正确的?()
A.按突出部位分为:枕后类、前顶类和颅底类
B.以前顶型最为常见
C.前顶类包括:鼻额型、鼻筛型、鼻眶型
D.蝶咽型属枕后类
E.蝶眶型属颅底类
F.鼻内型属前顶类
G.蝶筛型属颅底类
H.蝶颌型属前顶类
—It seems that his health is improving.
—Yes. It is ten years ___ he _____.
A.that, smoked
B.after, didn’t smoke
C.since, smoked
D.before, smoked