关于肾上腺的描述正确的是()。
A.为一对三角形腺体
B.属腹膜内位器官
C.与肾共同包于肾筋膜内
D.位于肾的外上方
E.可分泌生长激素
参考答案:C
35. —David has been in low spirits these days.
— _________ He should have failed in the Math test.
A.How come?
B.How is it?
C.Guess what?
D.No wonder
雌激素是合成孕激素的前体。()