某有机样品3．1 g完全燃烧，燃烧后的混合气体通入过量的澄清石灰水，石灰水共增重7．1g，经过滤得到l0 g沉淀。该有机样品可能是 （ ）
| A．乙烯 | B．乙醛 |
| C．乙酸 | D．乙二醇 |
相关试题
Now that we’ve discussed our problem, are people happy with the decisions _______? 
| A．taking | B．take | C．taken | D．to take |
Everybody was touched _____ words after they heard her moving story. 
| A．beyond | B．without | C．of | D．in |
One of the most important questions they had to consider was _____ of public health. 
| A．what | B．this |
C．that | D．which |
Encourage your children to try new things, but try not to ___ them too hard.
| A．draw | B．strike | C．rush | D．push |
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