与外科手术相比，人们容易接受介入治疗的主要原因在于()
A．安全可靠
B．并发症少
C．少创伤以至无创伤
D．术后效果好
E．术中时间短
参考答案：C
如果-1＜a＜b＜3，那么a-b的取值范围是______．
I used to hate being ________ about my red hair when I was at school.[ ]
A．dressed
B．scolded
C．teased
D．bothered
