虚火牙痛可在主穴的基础上加()
A．内庭、合谷
B．外关、风池
C．太溪、行间
D．合谷、颊车、下关
E．列缺、照海
参考答案：C
超声波在下列哪种介质中的传播深度最深（）
A.骨骼
B.血管
C.脂肪
D.肌肉
E.肝
I was________nervous when I gave the speech in public that I forgot everything I wanted to say in the
first few minutes. [ ]
A. such
B. too
C. very
D. so
