英国生理学家威廉哈维曾做过这样一个实验:用丝带扎紧人上臂时,发现丝带上方的血管变化情况是:血管①膨胀起来,血管②变扁,丝带下方的血管;血管③膨胀起来,血管④变扁。试判断血管①②③④依次是 ( ) A 动脉 动脉 静脉 静脉 B 动脉 静脉 动脉 静脉 C 静脉 动脉 静脉 动脉 D 动脉 静脉 静脉 动脉________with his flat, mine looks__________ new.A.Compared; as good as B.To compare; as well asC.Compared; as well as D.To compare; as good as