长条状薄片，弯曲，边缘略卷，全体具环节，具“白颈”的药材是
A．广地龙 B．水蛭 C．全蝎 D．斑蝥 E．蛤蚧
参考答案：A
根据句意，用所给动词的适当形式填空。
1. —Who will be the host of the party?
—As far as I know, Linda has already _____ (choose).
2. I'm sorry _____ (keep) you _____ (wait) for so long.
3. Who would you like _____ _____ (thank) for your achievements?
4. He thought they _____ (not see) each other again.
5. Thank you very much for _____ (help) me with my English.
热风围管的作用（）。
_____ (thank) for your achievements?