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【单选题】
三氯化铁可以用于鉴别下列哪类药物?A.
有机氟化物
B.
氯化物
C.
水杨酸盐
D.
酒石酸盐
E.
芳香第一胺
拍照语音搜题，微信中搜索"皮皮学"使用
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参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【简答题】交流接触器主要由电磁系统、( )、( )和辅助部件等组成。
【简答题】以下不属于中药配伍关系的是（ ）
【单选题】I can't find the key to the door. I have lost it on my way home.
A.
would
B.
should
C.
must
D.
ought to
【简答题】根据句意及首字母提示补全单词。 1. —What's w with you, Sam? —I can't find my key to open the door. 2. He thinks his computer is out of s . So he decides to buy a new one. 3. I had a fight with Sam, and we a with each...
【单选题】听力原文：M: I can't find tile key to my car. I need to go for a drive. W: I'll look for it later. Right now I want you to send the children to tile school bus station. Q: What will the man do first? (16)
A.
Look for the key to his car.
B.
Go for a drive.
C.
Take the children to bus stop.
D.
Repair his car with his children.
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