家兔的一个初级卵母细胞在减数分裂中，形成22个四分体，则形成的卵细胞中的染色体数为 [ ]
A．11条
B．22条
C．33条
D．44条
答案：B
尺神经支配（）。
A.肱二头肌
B.拇内收肌
C.拇长伸肌
D.肱三头肌
E.肱桡肌
The idea for going camping sounds ________ and I am really ________ in it. [ ]
A. interesting, interesting
B. interested; interesting
C. interested, interested
D. interesting; interested
