假性神经递质是（）和（）。
参考答案：苯乙醇胺；羟苯乙醇胺
— Have ______ cup of coffee, please.
— Thank you.
A．others
B．other
C．another
D．the other
In summer, I enjoy walking along a small river green grass and red flowers on both sides.
A．of
B．in
C．with
D．for
