皮皮学，免费搜题
登录
搜题
【单选题】
致畸作用的毒理学特点是A.
有致畸敏感期，计量反应关系曲线陡峭，物种差异明显
B.
无致畸敏感期，计量反应关系曲线陡峭，物种差异明显
C.
有致畸敏感期，计量反应关系曲线平缓，物种差异明显
D.
无致畸敏感期，计量反应关系曲线平缓，物种差异明显
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
【单选题】The Bush administration is giving public school districts broad new latitude to expand the number of single-sex classes, and even schools, in what is widely considered the most significant policy chan...
A.
There should be coeducational schools.
B.
There should be quality classes available to both sexes.
C.
There should be voluntary enrollers in such schools.
D.
There should be equal approach to both single-sex classes and coeducational classes.
【单选题】Which of these inhibits secretion and motility of the stomach?
A.
enterogastric reflex
B.
parasympathetic stimulation
C.
gastrin
D.
intrinsic factor
E.
distention of stomach wall
相关题目：