胁痛初病在气，病久可化火伤阴，又可入络致血瘀。
参考答案：对
Last week, only two people came to look at the house, _____ wanted to buy it. [ ]
A. none of them
B. both of them
C. none of whom
D. neither of whom
在制图线型标准中下列线型表示构造局部界限的是（）。
A．波浪线
B．细双点划线
C．细点划线
D．细虚线
