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【单选题】
边界层的动力学特征为____。A.
边界层厚度很薄
B.
边界层内有较大的速度横向切变
C.
黏性力与惯性力同量级
D.
每点都是有旋运动
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皮皮学刷刷变学霸
举一反三
【多选题】下面的叙述中正确的是: Select the answer that matches ( There are more than one correct answers )
A.
线性表在顺序存储时，查找第 i 个元素的时间与 i 的数值成正比。 When the linear list stored sequentially, the time to find the i-th element is proportional to value with i.
B.
线性表在顺序存储时，查找第 i 个元素的时间与 i 的数值无关。 When the linear list stored sequentially, the time to find the i-th element is regardless of the value of i.
C.
线性表在链式存储时，插入第 i 个元素的时间与 i 的数值成正比。 When linear lists stored in the linked form, the time to insert the i-th element is proportional to value with i.
D.
线性表在链式存储时，查找第 i 个元素的时间与 i 的数值无关。 When the linear list stored in linked form, the time to find the i-th element is regardless of the value of i.
【单选题】Select the one of the following statements that is NOT CORRECT :
A.
Protein folding is assisted by intervention of specialized auxiliary proteins called chaperone.
B.
Protein folding tends to be modular, with areas of local secondary structure forming first, then coalescing into a molten globule.
C.
Protein folding is driven first and foremost by the thermodynamics of the water molecules surrounding the nascent polypeptide.
D.
The formation of S-S bond in a mature protein is facilitated by the enzyme protein disulfide isomerase.
E.
Only a few unusual proteins, such as collagen, require posttranslational processing by partial proteolysis to attain their mature conformation.
【多选题】下列关于机械波的说法中正确的是
A.
有机械振动就有机械波
B.
有机械波就一定有机械振动
C.
机械波是机械振动在介质中的传播过程，它是传递能量的一种方式
D.
没有机械波就没有机械振动
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