根据句意和汉语或首字母提示，填写单词。

  1. He wrote down his name on the_____(石头).

  2. The soft-hearted old man wouldn’t hurt an_____(蚂蚁).

  3. We have five f_____on each hand.

  4. He is not strong enough to l_____the heavy box.

  5. There’s a delicious s_____coming from the kitchen.

21岁未婚少女，因肥胖、多毛及闭经拟诊为多囊卵巢综合征

测定内分泌改变应是（）

A.LH呈持续高水平

B.FSH呈持续高水平

C.LH／FSH比值<2

D.雄激素增多主要是脱氢表雄酮硫酸盐增加

E.雌酮低于正常值