【单选题】(2017.4单20)生态文明的核心是( )
【判断题】后轮驱动汽车在进行发动机制动时,由于制动力的作用增大了后轴侧偏角,产生了过多转向趋势。( )
【简答题】冰的熔化热为330.5J·g -1 ,则1.00g0℃的冰融化为同温度的水时,其熵变为( )。 (A) -330.5J·g -1 ·K -1 (B) -1.21J·g -1 ·K -1 (C) +330.5J·g -1 ·K -1 (D) +1.21J·g -1 ·K -1
【单选题】冰的熔化热为 330.5 J·g-1,则1.00 g,0℃的水凝固为同温度的冰时,其熵变为
【单选题】How were Sparrow's TV advertisements different from those of other fast-food businesses?
A.
They used celebrities to present the products.
B.
There was very little use of music.
C.
They compared the company with its competitors.
D.
There were very few product shots.
【简答题】冰的熔化热为330.5J·g -1 ,0℃时将1.0g水凝结为冰时的△S为 (A) -330.5J·K -1 ;(B) -1.21J·K -1 ; (C) 0; (D) 1.21J·K -1 。