下列哪项是阳虚证的典型表现
A．神疲乏力B．形体消瘦C．形寒肢冷D．舌暗脉细E．大汗淋漓
参考答案：C
--Did anybody __ me while I was out?—Yes, John came to see you.
A. ask B/ ask for C. turn to D. look at
下列物质中，属于共价化合物的是
A．HCl
B．NaCl
C．NaOH
D．H2
