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【单选题】
关于心肌细胞电活动的描述正确的是( )。A.
心肌细胞在状态时,膜外是阳离子,膜内是阴离子
B.
除极时大量阳离子短时间流入膜外
C.
复极时大量阳离子短时间流入膜内
D.
复极化的电偶是电穴在后,电源在前
E.
除极化的电偶是电穴在前,电源在后
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反馈参考答案：
举一反三
【单选题】Section A Directions：In this section there are ten sequences，each with one word or phrase underlined. Choose the one from the four choices marked A，B，C and D that best keeps the meaning of the sentenc...
A.
reasonable
B.
radical
C.
immediate
D.
minimum
【单选题】都江堰的建造使得成都平原由“年年洪灾水患”变为“沃野千里,水旱从人,不知饥馑,时无荒年”,并使直接受益的成都成为“天府之国“。这体现了
A.
技术与人
B.
技术与社会
C.
技术与自然
D.
技术与环境
【简答题】Section I Listening Comprehension (30 minutes) Directions : This section is designed to test your ability to understand spoken English. You will hear a selection of recorded materials and you must ans...
【单选题】Section A Directions：In this section there are 10 sentences,each with one word or phrase underlined.Choose he one from the 4 choices marked A,B,C and D that best keeps the meaning of the sentence.Then...
A.
explain
B.
deny
C.
consider
D.
recognize
【简答题】Section a Directions: in this section, you will hear two long conversations at the end of each comversation you will hear four questions. both the comversation and the questions will be spoken only on...
【简答题】Section a Directions: in this section, you will hear two long conversations at the end of each comversation you will hear four questions. both the comversation and the questions will be spoken only on...
【单选题】都江堰的建造使得成都平原由“年年洪灾水患”变为“沃野千里,水旱从人,不知饥馑,时无荒年”,并使受益的成都成为“天府之国”。此案例说明了以下那种关系( )
A.
技术与人
B.
技术与自然
C.
技术与社会
D.
技术与水利
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