干燥剂的干燥性能可用干燥干燥效率（1m立方空气中实际余留水蒸气的质量）来衡量．某些干燥剂的干燥效率如下：

根据以上数据，有关叙述错误的是（　　）

如图，已知A点坐标为（5，0），直线$y=x+b\left(b>0\right)$与y轴交于点B，连接AB，若∠a=75°，则b的值为 (      )

Early Life

    Stephen Hawking was born in Oxford, England on January 8, 1942. He____in a highly educated family. Stephen enjoyed math and science in school where he earned the nickname “Einstein.” He wanted to study math at university but Oxford didn't have a math ____at the time so he chose physics and chemistry instead. Stephen found college coursework to be very easy.  He enjoyed being a member of the schools boat club____ classical music. In October 1962 he started his graduate course at Trinity Hall. It was at this time that his illness started to show up. His speech became unclear and he became very clumsy, often dropping ____ or falling for no reason. However, he finished his PhD and wrote about black holes in his graduation paper.

地球上除了人类，还有成千上万种生命物质，这说明（    ）

2016年5月8日，中共中央***、***、中央军委主席***对福建三明市泰宁县开善乡发生山体滑坡灾害抢险救援工作做出重要指示，要求全力组织搜救，尽最大努力减少人员伤亡。灾害发生后，党和国家之所以高度重视人民的生命财产安全，是因为（    ）

①人的生命具有独特性             ②生命健康权是公民最根本的人身权利

③生命是地球上最宝贵的财富       ④保护公民的生命健康权是国家的责任