对于偏头痛的预防治疗，下列药物中最不合适的是（）。
A.赛庚啶
B.消炎痛
C.苯噻啶
D.百优解
E.心得安
参考答案：B
句型转换。
1. The box is so big that he can't carry it. (同义句转换)
The box is ______ big ______ him ______ carry.
2. John said to Mary, "Could you pass me the sugar?" (同义句转换)
John ______ Mary ______ she could pass ______ the sugar.
3. The speaker raised his voice in order that the listeners in the back row could hear him. (同义句转换)
The speaker raised his voice ______ ______ the listeners in the back row could hear him.
4. He didn't have breakfast and went to school. (同义句转换)
He went to school ______ ______.
5. She said, "I have waited for nearly two hours." (同义句转换)
She said that ______ ______ waited for nearly two hours.
驯化的途径有哪些？
