听力原文： The government of Pakistan says it now thinks that more than 38,000 people were killed by the South Asian earthquake a week ago. The number injured has risen to more than 60,000. In some of the areas worst affected, heavy rain and strong winds again temporarily grounded helicopter flights. BBC correspondent Jonathan Head reports now from Muzaffarabad: The earthquake struck rich and poor alike. This was a doctor's home in surgery. One week on his family are still retrieving what they can. It isn't much. But it's so much harder on the poor. In the hills outside Muzaffarabad a man complains all he's had to eat is biscuits. 14-year-old Javed took me onto the roof of what had been his house, now crushed to a few feet of rubble. 'This earthquake killed my sister', he told me, 'and my mother was badly injured'. His home today, like countless others here, is a grimy camp. The total casualties have surpassed ______. A．38,000 B．60,000 C．68,000 D．98,000