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【单选题】
下列方法中,不能提高 IPP 透明性的是 ( ) 。A.
迅速冷却
B.
增大球晶尺寸
C.
与非晶的 PVC 共混
D.
没有办法
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反馈参考答案：
举一反三
【单选题】米氏常数km的物理意义是:
A.
当酶促反应速率达到最大反应速率四分之一时的底物浓度。
B.
当酶促反应速率达到最大反应速率一半时的底物浓度。
C.
当酶促反应速率达到最大反应速率四分之三时的底物浓度。
D.
当酶促反应速率达到最大反应速率时的底物浓度。
【简答题】The child is clever ________ healthy.
【简答题】简述米氏常数Km的物理意义。
【单选题】The child is neither old enough nor clever enough to realize the _________ action on his own.
A.
desired
B.
desirable
【判断题】Chinese think no possible gain is achieved by having the child struggle to put a key into box since the child is neither old enough nor clever enough.
A.
正确
B.
错误
【简答题】...since the child is neither old enough nor clever enough to realize the desired action on his own, what possible gain is achieved by having him struggle?
【简答题】... since the child is neither old enough nor clever enough to realize the desired action on his own, what possible gain is achieved by having him struggle?
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