In context, which of the following is the best revision of the underlined portion of sentence 3 (reproduced below)?It is because our brains are always working to find the causes of the significant events that we perceive.

[单选题]上层建筑对社会发展作用的性质取决于（　　）。

[多选题]请问扩大国家免疫规划包括的疫苗能预防哪些疾病？（）

[问答题]四显示自动闭塞区段进站色灯信号机：一个绿色灯光和一个黄色灯光显示含义什么？

[问答题]请问在离婚时，对于房屋的分割处理是如何规定的？

[单选题]新鲜出血的CT值为（　）

[问答题]有中国特色的社会主义文化是什么？

[多选题]岩石圈运动的特征有（）。

[单选题]患者有膝关节扭伤及交锁史，最可能出现的损伤是（）

[单选题]下列胃溃疡大出血的治疗措施中，哪项除外？（）

[单选题]男性，52岁，慢性咳嗽、咳痰5年余，冬季好发，仍能坚持上班。近因胃溃疡大出血急诊手术治疗。手术后第1天出现呼吸困难进行性加重，伴发热。有冠心病史，平素无症状。动脉血气分析（呼吸空气）：pH7．48，PaCO24．0kPa（30mmHg），PaO26．7kPa（50mmHg），Qs／Qt32％。胸片两肺血管纹理增粗，普遍模糊该病例最可能的诊断是（）.

非专业可以考出版资格证书吗？有哪些报考条件？

关于BEC考试有哪些备考建议？

为什么要考BEC？

有哪些学习商务英语的好方法？

商务英语考试（BEC）难不难？

都说GRE考试难，那么它究竟难在哪？

什么是GRE考试？

雅思考试在即，如何快速备考？

说说雅思考试那些事

雅思5.5相当于CET几级的水平？

[单选题]In context, which of the following is the most effective revision of the underli...

[单选题]In context, which of the following is the best revision of the underlined portio...

[单选题]In context, which of the following is the best revision of sentence 5?

[单选题]In context, which of the following is the best revision of sentence 3 (reproduce...

[单选题]In context, which of the following is the best revision of sentence 17 (reproduc...

[单选题]Which of the following is the best revision of the underlined portion of sentenc...

[单选题]Which of the following is the best revision of the underlined portion of sentenc...

[单选题]Which of the following is the best revision of the underlined portion of sentenc...

[单选题]Which of the following is the best revision of the underlined portion of sentenc...

[单选题]In context, what is the best version of the underlined portion of sentence 10 (r...