【单选题】In the conversation, which organ in the channel of oral drug is NOT mentioned before the drug arrives at the liver?
C.
gastrointestinal tract
【简答题】3.The
narrator claimed that his brain is just like ______. A. a dynamo B. a scale C. a scalpel D. all the above
【多选题】4211增值税一般纳税人单位的原材料采购成本包括( )
【判断题】Hardy-Weinberg平衡描述的是在理想群体中,基因频率和基因型频率保持不变
【判断题】基因频率和基因型频率在各代始终保持不变是平衡群体。