社区护理研究的选题原则不包括()。
A.合理
B.可行
C.创新
D.感兴趣
E.范围大
参考答案:E
— Where does his mother live ?
— She lives__________ Singapore .
[ ]
A. at
B. in
C. on
D. from
吸气时肋间肌收缩,隔肌舒张。[ ]