皮皮学，免费搜题
登录
搜题
【多选题】
以下说法正确的是A.
知觉指人脑对直接作用于感觉器官的事物的个别属性的反映
B.
感知觉是人们认识世界的起始环节
C.
感知觉是维持人的正常心理活动的重要保障
D.
感觉是人脑对直接作用于感觉器官的事物整体的反映
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】When investigating the rate of reaction of the enzyme lipase on the hydrolysis of triglycerides, the pH must be maintained at an optimum to prevent the lipase denaturing. What is the reason for this?
A.
The addition of water molecules produced by hydrolysis increases pH
B.
The products of hydrolysis decrease the pH
C.
The products of hydrolysis increase the pH
D.
The removal of water molecules used in hydrolysis decreases pH
【简答题】In cells and tissues, __________ and _________ buffer systems maintain intracellular and extracellular fluids at their optimum pH, which is usually close to 7.
【单选题】The optimum pH for trypsin and chymotrypsin is about
A.
1-3.
B.
5-7.
C.
7-9.
D.
10-12.
【简答题】最佳货币区(optimum currency area)
【简答题】The economically optimum stand management plan for an owner is that which maximizes the net present value or willingness to pay for bare land just before ______.
【简答题】In cells and tissues, _______ and _________ buffer systems maintain intracellular and extracellular fluids at their optimum (physiological) pH at 7.
相关题目：