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【多选题】
启动PowerPoint后，要新建演示文稿，可通过（ ）方式建立。A.
内容提示向导
B.
设计模板
C.
已有的演示文稿
D.
空演示文档
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反馈参考答案：
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.
【简答题】Was machen sie? Ergänzen Sie. 他们在做什么?请把句子补充完整。 Beispiel: Der Lehrer liest. 1) Lehrerin singt. 2) Studentin macht Übungen. 3) Student hört Text 6 4) Kind spielt Fußball.
【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】最适pH(optimum pH)
【简答题】In cells and tissues, _______ and _________ buffer systems maintain intracellular and extracellular fluids at their optimum (physiological) pH at 7.
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