题目内容：
选择最佳选项填入（49）
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答案解析：
单选题：选择最佳选项填入（49）
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Why did he leave her?（ ）
Why did he leave her?（ ）A．Because he could no longer bear he B．Because he hated
根据短文回答题。Too Late to Regret itWhen I was a junior,I met a sec
根据短文回答题。Too Late to Regret itWhen I was a junior,I met a second-year student in
The fact that children arrive at school at about the same ti
The fact that children arrive at school at about the same time shows that（ ）A．sc
改造前后异丙苯的产量均为265000t/a，根据表1投入的原料量计算改扩建前后的总收率。
改造前后异丙苯的产量均为265000t/a，根据表1投入的原料量计算改扩建前后的总收率。
请选择短文（47）处最佳选项
请选择短文（47）处最佳选项