连接甲状腺左、右叶的部位称为（）。

A.锥叶

B.尾状叶

C.舌叶

D.峡部

E.喉头部

President Hu Jintao said economic growth is the basis for strengthening defense capability, which is ____,

an important indicator of overall national strength. [ ]

A. in turn

B. in return

C. on a large scale

D. in a row