根据诗歌《江雪》填空。
《江雪》中写出景色凄凉的诗句是____;写出人的孤独的诗句是____。
I want______to Beijing this weekend.
Y1
Y2
总计
X1
a
21
73
X2
2
25
27
b
46
A. She's my mother.
B. I have a happy family.
C. What's this?
D. This is my father.
Rose: ____
Tom: It's a picture (照片) of my family.
Rose: Who's this?
Tom: ____
Rose: Who's she?
Tom: ____ And this is me.
Rose: Are you happy?
Tom: Yes. ____
①取少量样品加入足量水仍有部分固体未溶解:再加入足量稀盐酸,有气泡产生,固体全部溶解;
②取少量样品加入足量稀硫酸有气泡产生,震荡后仍有固体存在.
该白色粉末可能为( )