The text “Climate Change: No Eden, No Apocalypse” suggests that climate change will bring us ultimate destruction, but also that we can somehow “stop” climate change to take us back to some fantasy world of perfection.( )
The text “Climate Change: No Eden, No Apocalypse” suggests that climate change will bring us ultimate destruction, but also that we can somehow “stop” climate change to take us back to some fantasy world of perfection.( )
$\int_{0}^{\frac{\text{ }\!\!\pi\!\!\text{ }}{4}}{[\cos (2t)\mathbf{i}+\sin (2t)\mathbf{j}+t\sin t\mathbf{k}]}\operatorname{dt}=$( ) A: $(\frac{1}{2},\frac{1}{2},\frac{4-\text{ }\!\!\pi\!\!\text{ }}{4\sqrt{2}})$ B: $(1,\frac{1}{2},\frac{4-\text{ }\!\!\pi\!\!\text{ }}{4\sqrt{2}})$ C: $(\frac{1}{2},1,\frac{4-\text{ }\!\!\pi\!\!\text{ }}{4\sqrt{2}})$ D: $(1,1,\frac{4-\text{ }\!\!\pi\!\!\text{ }}{4\sqrt{2}})$
$\int_{0}^{\frac{\text{ }\!\!\pi\!\!\text{ }}{4}}{[\cos (2t)\mathbf{i}+\sin (2t)\mathbf{j}+t\sin t\mathbf{k}]}\operatorname{dt}=$( ) A: $(\frac{1}{2},\frac{1}{2},\frac{4-\text{ }\!\!\pi\!\!\text{ }}{4\sqrt{2}})$ B: $(1,\frac{1}{2},\frac{4-\text{ }\!\!\pi\!\!\text{ }}{4\sqrt{2}})$ C: $(\frac{1}{2},1,\frac{4-\text{ }\!\!\pi\!\!\text{ }}{4\sqrt{2}})$ D: $(1,1,\frac{4-\text{ }\!\!\pi\!\!\text{ }}{4\sqrt{2}})$
Text 1
Text 1
Conversion can change a word’s form into another so as to make the text more_____. A.translator-accessible B.author-accessible C.reader-accessible </p></p>
Conversion can change a word’s form into another so as to make the text more_____. A.translator-accessible B.author-accessible C.reader-accessible </p></p>
(In the text “What Can I Do to Extend the Length of My Life?”) (Book 1, Unit 3) The hedging language can be used to __________ a message, as it is not actually presented as a fact. A: “soften” B: “strengthen” C: “change” D: “retain”
(In the text “What Can I Do to Extend the Length of My Life?”) (Book 1, Unit 3) The hedging language can be used to __________ a message, as it is not actually presented as a fact. A: “soften” B: “strengthen” C: “change” D: “retain”
已知齐次方程$(x-1){{y}^{''}}-x{{y}^{'}}+y=0$的通解为$Y={{C}_{1}}x+{{C}_{2}}{{e}^{x}}$,则方程$(x-1){{y}^{''}}-x{{y}^{'}}+y={{(x-1)}^{2}}$的通解是( ) A: ${{\text{C}}_{1}}x+{{\text{C}}_{2}}{{e}^{x}}-({{x}^{2}}+1)$ B: ${{\text{C}}_{1}}x+{{\text{C}}_{2}}{{e}^{x}}-({{x}^{3}}+1)$ C: ${{\text{C}}_{1}}x+{{\text{C}}_{2}}{{e}^{x}}-{{x}^{2}}$ D: ${{\text{C}}_{1}}x+{{\text{C}}_{2}}{{e}^{x}}-{{x}^{2}}+1$
已知齐次方程$(x-1){{y}^{''}}-x{{y}^{'}}+y=0$的通解为$Y={{C}_{1}}x+{{C}_{2}}{{e}^{x}}$,则方程$(x-1){{y}^{''}}-x{{y}^{'}}+y={{(x-1)}^{2}}$的通解是( ) A: ${{\text{C}}_{1}}x+{{\text{C}}_{2}}{{e}^{x}}-({{x}^{2}}+1)$ B: ${{\text{C}}_{1}}x+{{\text{C}}_{2}}{{e}^{x}}-({{x}^{3}}+1)$ C: ${{\text{C}}_{1}}x+{{\text{C}}_{2}}{{e}^{x}}-{{x}^{2}}$ D: ${{\text{C}}_{1}}x+{{\text{C}}_{2}}{{e}^{x}}-{{x}^{2}}+1$
At the end of the text, the author uses trees as an example to show that _____. A: a clean environment is very important to us B: everything in the world is precious C: change takes place very fast D: change takes place very slowly
At the end of the text, the author uses trees as an example to show that _____. A: a clean environment is very important to us B: everything in the world is precious C: change takes place very fast D: change takes place very slowly
Skim the text and answer the following questions. 1) What type of writing is the text?
Skim the text and answer the following questions. 1) What type of writing is the text?
文本框的默认事件是 A: Text1_Click() B: Text1_Change()
文本框的默认事件是 A: Text1_Click() B: Text1_Change()
当文本框的Text属性发生改变时,就触发( )事件。 A: setfocus B: click C: Dblclick D: change
当文本框的Text属性发生改变时,就触发( )事件。 A: setfocus B: click C: Dblclick D: change