题目

阅读下面短文，掌握大意，然后从A、B、C、D四个选项中选出最佳选项。 Mostparents send Care packages(包裹)and gifts to their Children when they're away at university. TerriCox, from Leonardtown, Maryland, isn't one of those 1. A fewweeks ago, Terri sent her son 18-year-old Connor, who's now 2 at Westminster College in Pennsylvania, apackage. 3 Connorfirst got the package, he thought it was a usual gift filled with necessities(必需品).I was4 because it's like Christmaswhen you get gifts from 5 especially when you're in College, hesaid. But as Connor 6 the package, 7．一个健康人每天形成的原尿约有150L，而排出的尿液一般约为1.5L，其原因是：大部分水分（　　）A．随粪便排出了体外B．通过汗液排出C．经肾小管的重吸收又回到了血液中D．经肾小球的重吸收又回到了血液中