多项选择题

属于兽药新制剂的是 A.
包合物 B.
固体分散体 C.
脂质体 D.
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股权筹资的基本形式有( )。 A.
发行债券 B.
吸收直接投资 C.
发行股票 D.
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单项选择题

Tidal streams and currents are described by the direction ( )

A．A. toward which they flow
B．B. from which they flow
C．C. toward which they blow
D．D. from which they blow