固井对钻井液含砂量（）。A、要求含量低 B、要求含量高 C、不要求 D、无法判断

（3a+2b）²-（a-4b）²．

硫酸的摩尔质量为______．49克硫酸的物质的量为______，配制成500mL溶液，所得溶液的物质的量浓度为______，该溶液中含H⁺的个数为______，取出该溶液10mL即取出了______个SO₄^2-．

根据句意及首字母或汉语提示，填写句中所缺的单词。

小题1:There was a big fire in the office yesterday. L_________, all the people were saved.

小题2:Li Lei is an h__________________ boy, he never tells lies.

小题3:The West Lake a__________________ thousands of tourists to Hangzhou every day.

小题4:The apartment is so expensive that Mr. Green can’t a__________________ it.

小题5: Mom, I’m so h__________________. Can I have something to eat?

小题6:There are __________________ (较少的) apples in this basket. I prefer that one.

小题7:Both of my best friends were born in ________________ (十月).

小题8:We are often told not to be __________________ (紧张的) in the examinations.

小题9: On my ________________ (第九) birthday, I got a computer from my aunt.

小题10:The camera was one of the greatest _________________ (发明) in the 19^th century.

中医治疗疾病的根本原则是

A．因地制宜

B．调整阴阳

C．治病求本

D．扶正祛邪

E．因时制宜

下面城市医疗救护中应用地理信息系统工作程序排序正确的是

①患者家属向监控中心请求急救

②患者进入救护车后，监控中心通过双向通话功能，指导医生实施紧急救治

③监控中心就可以从GIS电子地图上查看到患者的具体位置

④通过GIS的最优路径功能，给救护车指引道路，使其以最快速度到达医院或急救中心

⑤家属可以通过互联网立即查询救护车的行进位置及患者的病情等信息 [ ]

A、①②③④⑤

B、⑤④③②①

C、①③②④⑤

D、③④⑤①②