皮皮学，免费搜题
登录
搜题
【单选题】
细胞膜内外正常的Na + 浓度差和K + 浓度差的形成与维持是由于A.
膜在安静K + 通透性大
B.
膜在兴奋时对Na + 通透性增加
C.
Na + 、K + 扩散的结果
D.
膜上钠-钾泵的作用
E.
膜上ATP的作用
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
【简答题】请用下面所给的单词或词组造句 1. account for 是 ...... 的原因 2. be attributed to 归因于 3. Craze/frenzy/fever 狂热 4. Surge 激增 5. the driving force behind 背后的原因
【单选题】听力原文： American researchers have reported progress in learning how the ancient traditional Chinese method of acupuncture fights pain and other conditions. During acupuncture, very small, sharp needles ...
A.
Brain.
B.
Skin.
C.
Medicine.
D.
A sharp needle.
【简答题】若函数f(x)是幂函数，且满足 ，则 的值为 .
【单选题】The view from my bedroom window was absolutely (spectacular).
A.
general
B.
strong
C.
traditional
D.
magnificent
【简答题】用account for 词组造句。 据调查,去年到迪士尼的游客中,学生和儿童的人数占了半数以上。 警察正尽力弄清楚该地区犯罪高的原因。 你能说明一下你那晚都有哪些活动吗? 总统必须为他的政府改革负责,而且是负全责。
【多选题】2019年9月4日针对港乱,林郑月娥宣布( )。
A.
决不撒回条例草案
B.
支持警临会工作,任命2名新成员加入
C.
与所有司局长一起走入社会,与市民对话
D.
邀请社会领袖、专家和学者,共同研究香港社会深层次问题
【简答题】若函数f(x)是幂函数，且满足 ，则 的值为 ．
【单选题】In ___Chinese culture, marriage decisions were often made by parents for their children.A．traditio
A.
2. In ___Chinese culture, marriage decisions were often made by parents for their children. A．traditional
B.
historic
C.
remote
D.
initial
【单选题】What can we infer from this passage?
A.
Europe tends to follow American trends in a traditional way.
B.
Berlin resumed its status as the German capital following the fall of the Berlin wall in 1989.
C.
The 'coffee to go' trend also comes to Asia and the Middle East.
D.
The 'coffee to go' trend will take the concept of fast-paced life to Europe.
相关题目：
参考解析：
知识点：
题目纠错 0
发布
