皮皮学,免费搜题
登录
搜题
【单选题】
下列哪一个化合物是不能作基准物质的( )
A.
Na2CO3
B.
HCl
C.
Na2B4O7﹒10H2O
D.
Na2C2O4
拍照语音搜题,微信中搜索"皮皮学"使用
参考答案:
参考解析:
知识点:
.
..
皮皮学刷刷变学霸
举一反三
【简答题】I try to stay away from people who attempt to be different just for the sake of it/being different.
【简答题】You will learn what a lender can do if a company does not repay a loan.
【简答题】I was told to stay away out the erous instruments.
【多选题】What should you do before you learn to speak well?
A.
You should learn to control your voice
B.
You should learn to control your whole body
C.
You should learn to control your nervousness
【多选题】下列关于盐酸普鲁卡因性质的叙述,正确的是
A.
易氧化变质
B.
水溶液在中性、碱性条件下易水解
C.
可发生重氮化-偶合反应
D.
强氧化性
E.
在酸性下不水解
【多选题】下列关于盐酸普鲁卡因性质的叙述,正确的是
A.
易氧化变质
B.
水溶液在中性、碱性条件下易水解
C.
可发生重氮化-偶合反应
D.
强氧化性
E.
在酸性下不水解
【单选题】Why does Tess initially try to stay away from Angel?
A.
She’s not attracted
B.
Embarrassment about her pregnancy
C.
He’s highborn
D.
Fear of being rejected
【单选题】If I were you, I would __ electricity. It is dangerous.
A.
stay away from
B.
keep far from
C.
stay away
D.
keep from
【单选题】I try to stay away from people who attempt to be different just for the ____ of it/being different.
A.
make
B.
sake
C.
fake
D.
lake
【单选题】— ______ do you learn English? — I learn English by ______. [     ]
A.
How; listen to cassettes
B.
What; speaking it
C.
How; listening to cassettes
D.
Where; asking the teacher
相关题目: