海南哪个地方被誉为国母之乡（）
A.海口
B.文昌
C.琼海
参考答案：B
You'd better cut your hair short. Our school doesn't _____ long hair. [ ]
A. approve of students wearing
B. approve students to wear
C. approve students wearing
D. approve of students to wear
关于正常胸片下列哪项是错误的
A．应完全包括两侧肋膈角
B．肋软骨未钙化时不显影
C．正位胸片应显示上4个胸椎
D．左膈顶高度常高于右膈顶
E．第4肋后端约平胸骨角
