问题
名词解释
时间减影
答案
参考答案:
时间减影:用作减影的两图像是在不同显影时期获得的。
时间减影
参考答案:
时间减影:用作减影的两图像是在不同显影时期获得的。
选择句子,补全对话, 其中有两项是多余的。 A: Hello, sir, may I talk with you in English? B: Of course. A: I have learned English at school for one year. I have very few chances to talk with the English-speaking people. 小题1: B: Oh, you speak English very well. A: Thank you. By the way, 小题2: B: No, I’m not. 小题3: A: How long have you been in this city? B: 小题4: A: I see. Do you like this city? B: Yes. I like it very much. It’s a beautiful city. A: Thank you. 小题5:
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