【单选题】There are a lot of small living things in the sea, and they live by eating fishes.
【单选题】A lot of small towns in Nanchong are definitely worth_____.
【单选题】It is a small country, yet has a lot of ______ resources.
【单选题】药物的首过消除是指:
D.
药物经静脉注射,进入体循环之后,部分在肝脏内消除
E.
药物口服后,进入体循环之前,部分先在肝脏内消除