I wondered whether the movie was _____ worth _____.

A．very；seeing

B．well；being seen

C．very；being seen

D．well；seeing

哺乳动物的4个初级精母细胞形成的精子和4个初级卵母细胞细胞形成的卵细胞，如果全部受精，能形成的受精卵数目是 [     ]

A．4个

B．8个

C．6个

D．2个