用海藻治疗瘿病的最早记载见于：
A．《山海经》
B．《千金方》
C．《晋书》
D．《金匮要略》
E．《肘后备急方》
参考答案：E
— Hello, this is Tina speaking. Is that Sam?
— Sorry, he isn't here at this moment. _____? [ ]
A. Can I take a message
B. What are you saying to Tina
C. May I speak to Sam
D. Who's that speaking
脱盐现场电磁阀不动作，如何检查处理？
