枪弹的用途不同，弹头的颜色各异，燃烧弹弹头是什么颜色( ) _爱下问搜题

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问题单项选择题

枪弹的用途不同，弹头的颜色各异，燃烧弹弹头是什么颜色( )

A．红色
B．黄色
C．绿色
D．黑色

答案

参考答案：A

解析：子弹的种类很多，用途也各不相同，为了在战斗中便于区别辨认，制造者便在弹头的尖端涂上各种不同的颜色。分为无色普通弹、绿色曳光弹、红色燃烧弹、黑色穿甲燃烧弹、红紫色穿甲燃烧曳光弹、白色瞬爆弹等。故本题正确答案为A。

填空题

选词填空：（10分）

Be who real wash surprise
I see much month important

Years ago, I lived in a house in a large city. The house next door was only a few meters away from _小题1:_. Through the window, I could often see a woman _小题2:I had never met doing some reading in the house every afternoon.
Several 小题3:went by, I began to notice that her window was dirty. Everything was not very clear through the dirty window. I wondered why the woman didn’t wash her window. It __小题4:_ looked terrible.
One bright morning, I decided to clean my house, including __小题5:_ the window inside. Late in the afternoon when I finished all the cleaning, I sat down by the window with a cup of coffee for a rest. How _小题6:__! I found that the woman’s window was actually so clean that she could be _小题7:_ clearly sitting by the window.
That was quite an _小题8:_ lesson for me. how often had I looked at others through my own shortcomings (缺点)。
Since then, I have _小题9:_ used to asking myself whether I am looking through my own dirty window. Before I want to judge (判断) someone, I always think _小题10:__ than before and try to clean the dirty window so that I may see the world around me more clearly.

单项选择题

当溶液的[H⁺]＜[OH^-]时，溶液呈（）。

A.中性

B.强酸性

C.弱酸性

D.碱性