创面有逐渐变深的特点是（）。 A.强碱烧伤 B.硫酸烧伤 C.硝酸_爱下问搜题

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问题单项选择题 B型题

创面有逐渐变深的特点是（）。

A.强碱烧伤

B.硫酸烧伤

C.硝酸烧伤

D.盐酸烧伤

E.氢氟酸烧伤

F.生石灰烧伤

G.电击伤

H.电弧烧伤

答案

参考答案：A

选择题

下列说法正确的是

A．标准状况下，1 mol任何物质体积均为22.4L

B．2g H₂含1mol H

C．氧气的摩尔质量是32 g/ mol

D．3.01×10²³个SO₂分子的质量为64g

选择题

—Why didn't you answer when I spoke to you in the street this morning?

—I ______ but you didn't hear me.[ ]

A. did answer

B. didn't answer

C. could answer

D. couldn't answer