抗氧添加剂
参考答案：
加入油品产品中可以抑制其氧化的添加剂。
---- Your brother is good at running. How fast he runs in the sports meeting last week!
---- But he didn’t run _____ Sam.
A．so fast as
B．as faster as
C．as more quickly so
D．so slower as
治疗变异型心绞痛疗效最好的是
A．β受体阻滞剂B．钙通道阻滞剂C．硝酸酯类D．ɑ受体阻滞剂E．血管紧张素转换酶抑制剂
