术后，患者进行腹式呼吸锻炼，下列哪项需给予纠正（）
A. 吸气时腹部尽力挺出
B. 呼气时腹部尽力收缩
C. 胸廓随呼吸大幅度活动
D. 鼻吸口呼
E. 深吸慢呼
在我国，警察的任务是维护社会秩序，保卫国家安全。()
A. 正确
B. 错误
What can we learn from the story？
A. The girl's aunt got the news about the finding of a girl in the newspaper.
B. Mrs Ruth Li's daughter was too young to speak.
C. Mrs Ruth Li's sister made a long voyage to New York and recognized the girl.
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