题目

London―life for Cathy Hagner and her three children is set to permanent （不大可能改变的）.  Their  36  school day and her job as a lawyer’s assistant are busy enough.  37  Hagner also has to take the two boys to soccer or hockey or basketball while dropping off her  38  at piano lessons or Girl Scout Club.  39 , the exhausted （筋疲力尽的） family doesn’t get home until 7 PM. There is just time for a quick   40  before homework.  In today’s world, middle-class American and British parents treat their children  41  they were competitors  42  for some fin肾小球、肾小囊、肾小管末端的液体依次是（     ） A.血液、原尿、尿液    B.原尿、血液、尿液       C.原尿、尿液、尿液       D.血液、尿液、原尿