神经纤维膜电位由+30mV变为-70mV的过程称为
A.超极化B.去极化C.复极化D.反极化
参考答案:C
B)根据句子意思,用括号中所给单词的适当形式填空。
1. The amazing magic show made Liu Qian is as __________(popular) as Jay Chou.
2. The year of 2039 will be the ___________(hundred) birthday of our country.
3. All of us are preparing everything for the charity show ________(active).
4. All the people around cheered when the policemen saved the three _________ (child) lives successfully.
5. In order to improve his spoken English, Jim spends as much time as possible ______(practice) every day.
6. Not only you but also I ______(allow) to join the party yesterday.
1862年6月26日,《上海新报》一则某商行售卖“外国杂货”的广告云:新到什锦饼干、酸果、洋醋、吕宋烟、白兰地、小面镜仔、东洋竹篮仔等。这反映出 [ ]
A.社会经济结构的变动
B.国人办报事业的发展
C.物质生活时尚的变化
D.百姓衣食住行的西化