皮皮学，免费搜题
登录
搜题
【单选题】
在下列各组酸碱组分中,不属于共轭酸碱对的是A.
HOAc-NaOAc
B.
H3PO4-H2PO4-
C.
+NH3CH2COOH-NH2CH2COO-
D.
H2CO3-HCO3-
手机使用
分享
复制链接
新浪微博
分享QQ
微信扫一扫
反馈参考答案：
举一反三
【单选题】Jane , what a nice coat you are wearing today! - Thank you ! I ____ 480 yuan on it.
A.
cost
B.
took
C.
paid for
D.
spent
【单选题】— What's he wearing? — ___________________ [ ]
A.
He's wearing a green shirt.
B.
I am wearing a green shirt.
C.
She's wearing a green blouse.
【单选题】David has been away for more than 25 days.-I miss him very much.You know ,25 days _______short.
A.
isn't
B.
is
C.
are
D.
aren't
【单选题】— David has been away for more than 25 days . — I miss him very much . You know, 25 days short .
A.
is
B.
isn ’ t
C.
are
D.
aren ’ t
【单选题】--What a beautiful dress Jane is wearing！ --But it doesn't look good ____ her skin.
A.
on
B.
in
C.
against
D.
alongside
【单选题】What does the underlined sentence in the third pa ragraph mean?
A.
Jane’s life is very difficult．
B.
Jane continues to live as usual．
C.
Jane almost can’t control her lire
D.
Jane works very hard to live a happy life．
【单选题】Jane wanted to ______ some male attention by wearing hot dress in the club.
A.
attract
B.
attractive
C.
attempt
D.
audition
【简答题】关注生命，就是关注地球，地球的秘密令无数专家、学者终生去探究。就此回答1～2题： 1．小雪到英国格林尼治天文台旧址旅游时，他两脚跨在本初子午线地标的两侧，张开双臂表示东经和西经，此时东经和西经的度数分别向东、向西变化的规律是 [ ] A．没有变化 B．度数减少 C．度数增大 D．变化无规律 2．北宋沈括在《梦溪笔谈》中记载：在太行山（提示：位于北京西部）中发现许多海螺、海蚌壳等生物化石。这...
相关题目：
参考解析：
知识点：
题目纠错 0
发布
