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【单选题】
300K时,某一等温过程的ΔG=76.98KJ,ΔH=56.90KJ,则ΔS为A.
-18.40 J • K -1
B.
-66.93 J • K -1
C.
66.93 J • K -1
D.
703 J • K -1
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【单选题】These large-scale ___ are called epidermics. If they spread worldwide, they're called pandemics.
A.
broken
B.
breaking
C.
outbreak
【简答题】Small wildfires protect forests from large-scale combined crown, suce, and ground fires because these fires
【单选题】Naturally occurring wildfires—usually started by lightning strikes—are good for the forest. They are often small—they don't burn much forest, and they don't get too hot. These small fires actually pro...
A.
opposing views and contradicting argument
B.
facts or statistics
C.
logical arguments
D.
quotations from an expert
【单选题】用 Excel 可以创建各类图表,如条形图、柱形图等。为了描述特定时间内,各个项之间的差别情况,用于对各项进行比较应该选择哪一种图。 ( )
A.
条形图
B.
拆线图
C.
饼图
D.
面积图
【单选题】用ExCel可以创建各类图表,如条形图、柱形图等。为了描述特定时间内,各个项之间的差别情况,用于对各项进行比较应该选择哪一种图表( )。
A.
条形图
B.
折线图
C.
饼图
D.
面积图
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