皮皮学，免费搜题
登录
搜题
【简答题】
计算conc的平均值
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
【多选题】下列几组浓度均为 0.2mol/L 的溶液中,具有缓冲作用的是( )
A.
H 2 O--NaAc
B.
HCl--NaCl
C.
NaHCO 3 -Na 2 CO 3
D.
HAc — NaAc
【单选题】What is the characteristic of Twitters ads?
A.
Twitter's ads are actually hidden among ordinary tweets.
B.
Twitter prefers to use big glossy images to attract people's attention.
C.
Twitter's ads are usually sponsored by big companies like Starbucks
D.
After three years' trial, Twitter has decided to change its ads style.
【单选题】下列各项中说法错误的是( )
A.
阿拉伯数字应从左到右逐一书写，不得连笔
B.
数字不要顶满格书写
C.
货币数字与金额之间不得留有空白
D.
5002.00元的大写为伍仟零零贰元整
【单选题】初产妇，26岁，孕39周，阵发性腹痛6小时。检查：宫缩30～40秒/4～5分，胎位LOA，胎心142次／分。肛查：宫颈扩张2cm，可扪及前羊膜囊，目前最恰当的护理是( )
A.
待破膜后入院待产
B.
待宫缩变频后再入院
C.
立即收住院待产
D.
注射地西泮10mg以区别真假临产
E.
暂留门诊观察
【单选题】下列几组溶液具有缓冲作用的是( )
A.
H 2 O--NaOAc
B.
HCl--NaCl
C.
NaHCO 3 --Na 2 CO 3
D.
NaOH--Na 2 SO 4
【简答题】ADS
【单选题】There are advantages and disadvantages to 21 Asian and Western educational method. For example, one advantage 22 the education in Japan is that students there learn much more math and science 23 Ameri...
A.
not only
B.
all
C.
both
D.
only
【单选题】The information given by the lie detector, according to the author, is ______.
A.
trivial
B.
essential
C.
surprising
D.
wrong
【单选题】The definition of “banner ads” is ________.
A.
large ads shown on the screen for complementary products
B.
ads that appear in the user’s e-mail
C.
ads that the user “clicks” to see
D.
small, rectangular boxes containing text and perhaps a picture
E.
ads that “pop up” on the users screen from time to time
相关题目：
参考解析：
知识点：
题目纠错 0
发布
