多基因遗传的遗传基础是2对或者2对以上微效基因，这些基因的性质是

单项选择题A fixed amount of gas at 25.0 °C occupies a volume of 10.0 L when the pressure is 667 torr. Use Boyle's law to calculate the pressure (torr) when the volume is reduced to 7.88 L at a constant temperature of 25.0 °C.A.846B.0.118C.5.26 × 104D.526E.1.11

单项选择题下列各项中，除哪项外均能治疗牙痛 A、下关 B、颊车 C、太阳 D、内庭