Questions 21 to 23 are based on the following news. At the end of the news item, you will be given 15 seconds to answer the questions. Now, listen to the news. This year, the new troop increase will cost about______.
A. $ 300,000,000
B. $ 100,000,000
C. $ 1,000,000,000
D. $ 30,000,000,000
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Questions 4 to 6 are based on the following conversation. At the end of the conversation, you will be given 15 seconds to answer the questions. Now. listen to the conversation. The woman is going to celebrate Christmas with ______.
A. her family at home
B. her friends in a pub
C. nobody but herself
D. her roommates
护理使用三腔二囊管的患者时,观察出血停止后可拔管。
A. 对
B. 错