题目内容
重量分析法是化学分析中最先进的分析法。
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当男孩正走在街上时，飞碟着陆了。
In June 1985, two British mountaineers Joe Simpson and Simon Yates made the first-ever climb of the 21,000-foot snow-covered Siula Grande mountain in Peru. It was an exceptionally (26) job, but nothing compared to what was to (27) . Early in the process, Simpson (28) and broke his right knee. Yates could have (29) him but managed to find a way of (30) him down the mountains on a rope in a series of difficult drops. Then Simpson fell into a crevasse and Yates eventually had no (31) but to cut the (32) , completely convinced that his friend was now (33) In his book on the (34) , Joe Simpson wrote:(35) I looked at the distant moraines, I know that I must at least try I would probably (36) there among those rocks. If I died, well, that wasn’t so (37) , but I wouldn’t have (38) waited for it to happen. The (39) of dying no longer affected me as it had in the crevasse at first. I now had a chance to (40) it and struggle against it.The survival of Yates himself was (41) . That Simpson somehow found a way of (42) out of the crevasse after 12 hours and then crawled and (43) himself six miles back to camp, (44) three days and might without food or drink, would be considered as a heroic fiction. But in fact it was so (45) . 40().
配制1.0mol/L的硫酸溶液1L，需量取硫酸溶液(ρ=1.84g/cm3，质量分数为98%)56mL，并加水稀释至1L。
每股利润最大化目标的缺点在于没有考虑资金的时间价值和风险因素，但可以避免企业的短期行为。 ( )
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