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【单选题】
水利坡度 i 宜为( )
A.
1/5
B.
1/8
C.
1/10
D.
1/12
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皮皮学刷刷变学霸
举一反三
【单选题】肌肉兴奋一收缩耦联的关键因素是______。
A.
横桥运动
B.
ATP酶的活性
C.
动作电位
D.
胞浆内Ca +2 的浓度
E.
Na + 的迅速内流
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【简答题】补全对话。 A: Great weekend again! I'm so happy. 1_____ ? B: I'd like to do sports. A: Me, too. What sport are you going to do? B: 2_____. A: But the radio says it will be rainy tomorrow. B:  It's just the...
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【简答题】补全对话。 A：Hello,may I speak to Bruce,please? B：1 .I'll see if he is in. (A few minutes later) C：Hello!Bruce here. A：Hello, Bruce! This is Bill speaking.It's Sunday tomorrow.    What are you going to do?...
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【简答题】根据对话内容，在空白处填写适当的话语（话语可能是一个句子，也可能是一个短语或一个词），使对话完整。 A: Great weekend again! I'm so happy. 1 ？ B: I'd like to do sports. A: 2 . What sport are you going to do? B: I'm going swimming. A: But the radio say...
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【单选题】兴奋一收缩耦联的关键因素是
A.
爆发动作电位 终池释放Ca2+
B.
横管膜产生电位变化
C.
终池释放Ca2+
D.
ATP酶激活
E.
横桥摆动
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【简答题】补全对话(选择正确答案的序号填入横线上) A: 1 . B: Why do you like to see pandas? A: 2 . B: 3 ? A: I like to see elephants, too. Because they can dance. B: Really? 4 . By the way, do you want to be an assistant in the zo...
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【单选题】兴奋一收缩耦联的关键因素是
A.
爆发动作电位
B.
横管膜产生电位变化
C.
终池释放Ca2+
D.
ATP酶激活
E.
横桥摆动
查看完整题目与答案
【判断题】脉管系统由心血管系统和淋巴系统组成。
A.
正确
B.
错误
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【简答题】选出与你听到的句子意思相一致的选项。 (     )1. A. I'm going to buy a boat next week. B. I'm going to the swimming pool next week. C. I'm going swimming next week. (     )2. A. Let's meet him. B. Let's go and meet him. ...
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【简答题】翻译句子(不一定跟参考答案一字不差,理解对了就行。) 1. Be quick! We will be late. 2. Don't worry about him. 3. Never give up! 4. Let's not talk about it. 5. How brave the boy is! 6. How time flies! 7. How joyful he was to mee...
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【单选题】肌肉兴奋一收缩耦联的关键因素是______。
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查看完整题目与答案
【单选题】兴奋一收缩耦联的关键因素是
A.
爆发动作电位
B.
横管膜产生电位变化
C.
终池释放Ca2+
D.
ATP酶激活
E.
横桥摆动
查看完整题目与答案
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查看完整题目与答案
【简答题】选出与你听到的句子意思相一致的选项。 (     )1. A. I'm going to buy a boat next week. B. I'm going to the swimming pool next week. C. I'm going swimming next week. (     )2. A. Let's meet him. B. Let's go and meet him. ...
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【简答题】翻译句子(不一定跟参考答案一字不差,理解对了就行。) 1. Be quick! We will be late. 2. Don't worry about him. 3. Never give up! 4. Let's not talk about it. 5. How brave the boy is! 6. How time flies! 7. How joyful he was to mee...
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