Does your sister               exercise after school?    [ ]

A. gets many          

B. get much     

C. gets lot            

D. get lot of

Bouin固定液配方是()

A．80%乙醇150ml

B．甲醛60ml

C．冰醋酸15ml

D．苦味酸1g

E．固定后可直接转入95%乙醇脱水