---I have tried very hard to find a solution to the problem, but in vain.

---Why not consult with Frank? You see,         .

A．great minds think alike

B．two heads are better than one

C．a bird in the hand is worth two in the bush.

D．it’s better to think twice before doing something

下列哪些不是糖皮质激素的作用（）

A.维护毛细血管的通透性正常

B.促进蛋白质合成

C.促进糖原分解

D.促进四肢脂肪合成

E.增强机体对有害刺激的抵抗力