皮皮学，免费搜题
登录
搜题
【单选题】
有机磷农药中毒时,代谢失常的神经递质是A.
多巴胺
B.
乙酰胆碱
C.
5-羟色胺
D.
肾上腺素
E.
去甲肾上腺素
拍照语音搜题，微信中搜索"皮皮学"使用
参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【简答题】A difficulty of arranging their lips naturally and an inability to balance their heads showed that they were genuine country girls, _________________(不习惯被众人看).
【简答题】治疗大发作和局限性发作的首选药,对小发作无效( )
【单选题】He has ________ on his farm.
A.
20 head of cattles
B.
20 heads of cattles
C.
20 heads of cattle
D.
20 head of cattle
【简答题】Monarchs are kept as heads of state in Europe mostly [A] owing to their undoubted and respectable status [B] to achieve a balance between tradition and reality [C] to give voter more public figures to...
相关题目：