问题
单项选择题 B型题
选择性地阻断Na通道的物质是()
A.河豚毒
B.四乙胺
C.阿托品
D.简箭毒
E.维拉帕米
答案
参考答案:A
选择性地阻断Na通道的物质是()
A.河豚毒
B.四乙胺
C.阿托品
D.简箭毒
E.维拉帕米
参考答案:A
Dear Li Tao, I am an American schoolgirl. My name is Alice Green. I am thirteen. There are five people in my family—my brothers, my parents and I. My brothers and I are all students and at the same school. We go to school from Monday to Friday. We don’t have any classes on Sundays or Saturdays. My father and mother are teachers. They say, China is great, and Chinese people are friendly(友好), I want to travel(旅行) in China. I think it is very interesting(有趣), isn’t it? I like reading. Now I am reading a book of Chinese stories. They are very interesting. My brothers and I like playing soccer(足球) and basketball. What do you like? Let’s be(成为) friends. Please write to me soon(快点). Alice Green Information Card
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