2015年职称英语理工A阅读判断真题答案及解析
更新时间：2015-12-10 11:50:58
来源：|0
浏览
收藏
浏览
收藏
摘要 2015年职称英语理工A阅读判断真题答案及解析，供考生参考。
第二部分：阅读判断
Lack of Oxygen Delayed the Rise of Animals on Earth
Scientists have long speculated as to why animal species didn’t flourish sooner, once sufficient oxygen covered the Earth’s surface. Animals began to prosper at the end of the Proterozoic period, about 800 million years ago ― but what about the billion-year stretch before that, when most researchers think there also was plenty of oxygen?
编辑推荐：
环球网校友情提示：如果您在此过程中遇到任何疑问，请登录环球网校职称英语频道及论坛，我们随时与广大考生朋友们一起交流!
最新资讯
- 职称英语理工类C补全短文真题及答案2017-07-03
- 职称英语综合C阅读判断真题及答案2017-07-03
- 职称英语综合C概括大意与完成句子真题及答案2017-07-03
- 职称英语综合c完形填空真题及答案2017-07-03
- 职称英语综合B完形填空真题及答案2017-06-29
- 职称英语真题及答案卫生C补全短文2017-06-29
- 职称英语真题《卫生类b级》阅读判断练习2017-06-29
- 职称英语真题卫生类c级词汇选项真题练习2017-04-27
- 职称英语真题综合类B级单项选择题真题讲解2017-04-27
- 职称英语真题综合类B级阅读理解真题讲解2017-04-27
打卡人数
