风湿性瓣膜病时,最常受累的两个瓣膜是()
A.二尖瓣和三尖瓣
B.二尖瓣和主动脉瓣
C.二尖瓣和肺动脉瓣
D.主动脉瓣和肺动脉瓣
E.肺动脉瓣和三尖瓣
参考答案:B
关于提单的证据效力,我国海商法规定,在将提单转让给善意的第三人之后,提单的记载就成为承运人按提单记载收到货物的()。
A.初步证据
B.指定证据
C.绝对证据
D.相对证据
单词拼写。
1. Many students attended the lecture, i______ our monitor.
2. Though he is not a n______ English speaker, he can speak English very fluently.
3. Though I haven't met him for many years, I could r______ him immediately I saw him in the crowd.
4. He thought I had known the fact. But a______, I knew nothing about it.
5. Luckily, after the earthquake, the people have got a lot of i ______ help.