下列能够正确表示蛙的发育过程的是（）

从每题A、B、C、D四个选项中，选出一个最佳答案完成对话。
A: Good morning , Joe .
B: Good morning , Peter .
A: You look unhappy , what's wrong ?
B: Oh, 1 I don’t look cool .
A: Well , maybe you should buy some clothes .
B: Yes , but 2
A: Hmm, maybe you could get a part-time job in the evenings.
B: I can’t , because my parents want me to stay at home every night .3
A: Well , you shouldn’t argue with your parents .You should talk about your problems .
B: And guess 4
A: What?
B: My brother plays his CDs too loud! 5
A: I'm sorry to hear that .

①尊重历史事实有助于形成正确的价值判断

②价值选择帮助人们清醒地认识和正视历史

③正确的价值判断和价值选择必须坚持真理

④价值判断和价值选择具有社会历史性

如图，⊙O的内接四边形ABCD中，∠A=115°，则∠BOD等于 ____

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