△ABC经过平移后到△A1 B1 C1的位置，量得A、A1间的距离为2.1cm，则B、B1间的距离为（ ）cm.
2.1
— How about the price of these computers ?
— They are equal in price to, if not cheaper than, ________ at the other stores．
A．others
B．it
C．that
D．the ones
患者，男性，45岁。患"高血压"5年，症见头晕且痛，目赤口苦，胸胁胀痛，烦躁易怒，舌红苔黄腻，脉弦数。诊断为眩晕(肝火上炎证)。其治疗原则应为
A．平肝潜阳，滋养肝肾
B．清肝泻火，清热利湿
C．燥湿祛痰，健脾和胃
D．补养气血，健运脾胃
E．滋养肝肾，养阴填精
