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

下列选项中造成宫颈黏液涂片干后镜下见羊齿状结晶的激素是（）

A.雌激素

B.催乳素

C.雄激素

D.孕激素

E.甲状腺素