问题
选择题
从生活常识角度考虑，钠元素在自然界中存在的主要形式是（ ）
A．Na
B．Na Cl
C．NaOH
D．Na2O
答案
答案：B
钠属于活泼的金属，以化合态的形式存在，主要是以验的形式存在，所以答案选B。
搜题请搜索小程序“爱下问搜题”
从生活常识角度考虑，钠元素在自然界中存在的主要形式是（ ）
A．Na
B．Na Cl
C．NaOH
D．Na2O
答案：B
钠属于活泼的金属，以化合态的形式存在，主要是以验的形式存在，所以答案选B。
What kind of person becomes an addict? Someone 21 , with a lot of friends; or someone who is 22 from the rest, with only a few friends, or none at all? The 23 I am trying to make is that anyone can become an addict. The only way that I 24 this out was by becoming an addict myself. I used to be a guy who was 25 in the popular crowd. Right before high school began, I started being 26 by most of my friends. I had never lived with the 27 that I had no friends, so I did almost anything to 28 the two good friends I still had. One of the things I did was 29 drugs for the first time. This was a big 30 from the way I lived when I was younger. I was a(n) 31 , and the last thing I thought I would get into was drugs. Drugs 32 me from being the best sports player I could be. I 33 to smoke drugs after I entered high school because that was what my new "cool" friends were 34 . The next three years were filled with many 35 , I was arrested twice, and lost my license for two years. This made me sad and 36 . I realized I could not live this way; I must stop the 37 of using drugs. Since then, my 38 and actions have changed and so has my direction in life. I do see a future in water skiing. 39, I haven’t killed my chance in 40 . I know that I must keep a clear head first. Keep Coming Back. It works if you work it.
|