某植物水浸液,加三氯化铁呈绿黑色,加明胶有白色沉淀,与稀硫酸共煮,有暗红色沉淀,表明植物可能含下列哪类成分
A.蛋白质
B.有机酸
C.鞣质
D.黄酮
E.皂苷
参考答案:C
哲学并不神秘,哲学就在我们身边。下列关于哲学智慧的产生的说法中,不正确的是 [ ]
A.哲学产生于人类的实践活动
B.哲学产生于人们对实践的追问和对世界的思考
C.哲学产生于哲学家的实践活动和主观情绪中
D.哲学产生于人们认识世界和改造世界的活动中
短文填词。
Like most of my schoolmates, I have neither brothers nor
sisters-in other 1 , I am an only child. My parents
love me ly of course and will do all they 2 to make sure
that I get a good 3 (教育). They do not want me to do
any work at home; they want me to d 4 all my time to
my studies so that I'll get good marks in all my 5 (科目). We
may be one family and live 6 the same roof, but we do
not seem to get much time to talk 7 (一起). It looks
as if my parents t 8 me as a visitor or a guest.
Do they really u 9 their own daughter
What things are in other families, I w 10 .