An elderly man was scalded by hot water on two feet and felt severe pain, where there were blisters on wounds, and the wound base was red and swelling. What are the estimated burn area and depth? A: 6% and superficial partial-thickness B: 7% and superficial partial-thickness C: 6% and deep partial-thickness D: 7% and deep partial-thickness
An elderly man was scalded by hot water on two feet and felt severe pain, where there were blisters on wounds, and the wound base was red and swelling. What are the estimated burn area and depth? A: 6% and superficial partial-thickness B: 7% and superficial partial-thickness C: 6% and deep partial-thickness D: 7% and deep partial-thickness
设方程\({x^2} + {y^2} + {z^2} = 2Rx\)确定函数\(z=z(x,y)\)，则\( { { \partial z} \over {\partial x}}=\) A: \( { { \partial z} \over {\partial x}} = { { R +x} \over z}\) B: \( { { \partial z} \over {\partial x}} =- { { R +x} \over z}\) C: \( { { \partial z} \over {\partial x}} = { { R - x} \over z}\) D: \( { { \partial z} \over {\partial x}} =- { { R - x} \over z}\)
设方程\({x^2} + {y^2} + {z^2} = 2Rx\)确定函数\(z=z(x,y)\)，则\( { { \partial z} \over {\partial x}}=\) A: \( { { \partial z} \over {\partial x}} = { { R +x} \over z}\) B: \( { { \partial z} \over {\partial x}} =- { { R +x} \over z}\) C: \( { { \partial z} \over {\partial x}} = { { R - x} \over z}\) D: \( { { \partial z} \over {\partial x}} =- { { R - x} \over z}\)
第2类拉格朗日方程表达式为____ 。 A: $\frac{{\rm{d}}}{{{\rm{d}}t}}\left( {\frac{{\partial T}}{{\partial {{\dot q}_k}}}} \right) - \frac{{\partial T}}{{\partial {q_k}}} = 0$ B: $\frac{{\rm{d}}}{{{\rm{d}}t}}\left( {\frac{{\partial T}}{{\partial {{\dot q}_k}}}} \right) - \frac{{\partial T}}{{\partial {q_k}}} = {Q_k}$ C: $\frac{{\rm{d}}}{{{\rm{d}}t}}\left( {\frac{{\partial T}}{{\partial {{\dot q}_k}}}} \right) + \frac{{\partial T}}{{\partial {q_k}}} = {Q_k}$ D: 以上都不对
第2类拉格朗日方程表达式为____ 。 A: $\frac{{\rm{d}}}{{{\rm{d}}t}}\left( {\frac{{\partial T}}{{\partial {{\dot q}_k}}}} \right) - \frac{{\partial T}}{{\partial {q_k}}} = 0$ B: $\frac{{\rm{d}}}{{{\rm{d}}t}}\left( {\frac{{\partial T}}{{\partial {{\dot q}_k}}}} \right) - \frac{{\partial T}}{{\partial {q_k}}} = {Q_k}$ C: $\frac{{\rm{d}}}{{{\rm{d}}t}}\left( {\frac{{\partial T}}{{\partial {{\dot q}_k}}}} \right) + \frac{{\partial T}}{{\partial {q_k}}} = {Q_k}$ D: 以上都不对
Assume the capacitor areas of top and tunnel oxide are identical, which of the following statements is NOT true about designing oxide thickness? A: The minimum of top oxide thickness is limited by erase speed. B: The minimum of tunnel oxide thickness is limited by charge retention time. C: The maximum of top oxide thickness is limited by coupling ratio. D: The maximum of tunnel oxide thickness is limited by program speed.
Assume the capacitor areas of top and tunnel oxide are identical, which of the following statements is NOT true about designing oxide thickness? A: The minimum of top oxide thickness is limited by erase speed. B: The minimum of tunnel oxide thickness is limited by charge retention time. C: The maximum of top oxide thickness is limited by coupling ratio. D: The maximum of tunnel oxide thickness is limited by program speed.
智慧职教: The original thickness of the carbon strips is ( ) and when the thickness reaches 3mm , the carbon strips must be replaced.
智慧职教: The original thickness of the carbon strips is ( ) and when the thickness reaches 3mm , the carbon strips must be replaced.
The basic line thickness of the drawing refers to the thickness for the ( ) line A: thin B: semi-bold C: bold D: middle
The basic line thickness of the drawing refers to the thickness for the ( ) line A: thin B: semi-bold C: bold D: middle
The thickness of Biangbiang Noodle is similar with_______.
The thickness of Biangbiang Noodle is similar with_______.
Strings of the same thickness made of nylon are ______.
Strings of the same thickness made of nylon are ______.
Dead space like ventilation refer to () A: decrease<br/>of partial alveolar ventilation B: increase<br/>of partial alveolar VA/Q C: increase<br/>of partial alveolar ventilation D: decrease<br/>of partial alveolar VA/Q E: increase<br/>of anatomic shunt
Dead space like ventilation refer to () A: decrease<br/>of partial alveolar ventilation B: increase<br/>of partial alveolar VA/Q C: increase<br/>of partial alveolar ventilation D: decrease<br/>of partial alveolar VA/Q E: increase<br/>of anatomic shunt
\[设z=z(x,y)是由方程f(cx-az,cy-bz)=0所确定的函数,则a\frac{\partial z}{\partial x}+b\frac{\partial z}{\partial y}=（）\] A: a B: b C: c D: 0
\[设z=z(x,y)是由方程f(cx-az,cy-bz)=0所确定的函数,则a\frac{\partial z}{\partial x}+b\frac{\partial z}{\partial y}=（）\] A: a B: b C: c D: 0