硝酸酯类舒张血管的机制是：
A.直接作用于血管平滑肌
B.阻断α受体
C.阻滞Ca2+通道
D.释放一氧化氮
参考答案：D
The cheater managed to cheat Lisa by ______ her into thinking he was rich at first.[ ]
A. misreading
B. misunderstanding
C. misleading
D. misfitting
下列是体循环淤血症状，除了（）
A.纳差、恶心
B.上腹胀痛
C.少尿
D.浮肿
E.呼吸困难
