右心功能不全时常见症状为
A．呼吸困难
B．咳嗽、咳痰
C．少尿
D．心悸
E．胃肠道症状
参考答案：E
关节腔积液黏蛋白凝块形成试验形成良好的是（）
A.红斑狼疮
B.化脓性关节炎
C.结核性关节炎
D.类风湿关节炎
E.痛风
. I’m sorry to have known my train arrives in New York at eight o’clock tonight. The plane I would like to take from there ____ by then.
A．will have left
B．would leave
C．had left
D．has left
