问题
单项选择题 A1/A2型题
下列选项中，可产生高T值的碱基对是（）
A.G+C
B.A+T
C.A+C
D.A+G
E.T+C
答案
参考答案：A
搜题请搜索小程序“爱下问搜题”
下列选项中，可产生高T值的碱基对是（）
A.G+C
B.A+T
C.A+C
D.A+G
E.T+C
参考答案：A
根据对话内容，从对话后的选项中选出能填入空白处的最佳选项，并在答题卡上将该项涂黑。选项中有两项多余选项。 Doctor: Can I help you? Patient: Yes, 1 Doctor: What’s the matter with it? Patient: Oh, it’s terrible! I was burnt in a fire caused by smoking. Doctor: 2 Patient: Oh, nothing. I didn’t know what to do. Doctor: OK, Put it higher. Let me examine it and put some medicine on it. Patient: Ah, I feel a great pain here. Would you mind me lying down? Doctor: Of course not. 3 Patient: But I feel so bad. Doctor: Just stay in bed until next Friday. Don’t move a bit. Patient: 4 Doctor: No, you can’t do that. Take this medicine three times a day. Patient: Oh, it’s terrible! Terrible! I hate it! Doctor: Calm down please! 5
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