通过cGMP—蛋白激酶途径发挥作用的是
A．糖皮质激素
B．孕激素
C．盐皮质激素
D．心钠素
E．甲状腺素
参考答案：D
Directions:
The Students’ Union of English Department will hold an English speech contest. You are required to write a poster through which students and teachers can be informed of the event. The poster should include:
1) schedule of the contest,
2) and requirements and other details.
Write your letter in no less than 100 words. Write it neatly on ANSWER SHEET 2.
