题目内容
（请给出正确答案）
[主观题]
SECTION CNEWS BROADCASTDirections: In this section, you will hear several news items. List
SECTION C NEWS BROADCAST
Directions: In this section, you will hear several news items. Listen to them carefully and then answer the questions that follow.
听力原文： Doctors in the Canadian city of Toronto say an operation to separate conjoined twins from Zimbabwe went well. And they are optimistic about the boys' recovery. The seven-month old brothers were born joined at the abdomen, and with their livers connected. As it's normal for this kind of operation, they are expected to remain on life support machines for at least a week.
How long will the twins remain on life support machines？
A．At least one week.
B．Seven months.
C．One month.
D．At least three weeks.
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