单项选择题
炭疽芽孢杆菌不能形成荚膜结构。( )A.对 B.错
单项选择题炭疽芽孢杆菌不能形成荚膜结构。( )
The equivalent variation in income from a tax is the am...
不定项选择The equivalent variation in income from a tax is the amount of extra income that a consumer would need in order to be as well off after the tax is imposed as he was originally.
原尿最先出现的部位是 A. 肾小管 ...
单项选择题原尿最先出现的部位是 A. 肾小管 B. 肾小球 C. 肾小盏 D. 肾小球囊腔