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【简答题】
有一箱木炭,它的质量为10kg,热值为3.4×10 7 J/kg.若用掉一半,剩下木炭的热值为______,半箱木炭燃烧最多放出热量______ J.
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参考答案:
举一反三
【多选题】下列命题中,哪一项属于实证经济学(客观描述经济现象,不包含价值判断)的表述( )
A.
为了抑制通胀压力,我国的存款准备金率从2008年初的14.5%上调至21.5%。
B.
温家宝总理近日(2011年11月6日)在圣彼得堡表示:“对于房地产一系列的调控措施,决不可有丝毫动摇,我们的目标是要使房价回归到合理的价格。”
C.
改革开放以来,中国经济快速增长,GDP年均增长率约10%,现已成为世界第二大经济实体。
D.
我国个人所得税的起征点已经超过5000元
查看完整题目与答案
【判断题】pn结的正向偏压可降低pn结的势垒高度
A.
正确
B.
错误
查看完整题目与答案
【单选题】Captain Smith didn't inform. his officers of the tree situation because he didn't want to cause a panic.
A.
Y
B.
N
C.
NG
查看完整题目与答案
【简答题】______ the determined captain , all the passengers on board wouldn ' t have been saved. [ A]It had not been for [ B ] Had it not been for [ C]lf it had not for [ D] Not had been for
查看完整题目与答案
【单选题】Tothe sea captain’s surprise , he found that travel could also be quite pieasant .
A.
. earth
B.
. 1and
C.
. ground
D.
. plain
查看完整题目与答案
【单选题】At first the captain didn't worry because the ship was said to be _______.
A.
unsinkable
B.
perfect
C.
unprepared
D.
unusually
查看完整题目与答案
【单选题】共析转变和共晶转变的根本区别是()
A.
共析转变前的母相是固相,而共晶转变前的母相是液相
B.
共析转变前的母相是液相,而共晶转变前的母相是固相
C.
共析转变后的产物是固相,而共晶转变后的产物是液相
D.
共晶转变后的产物是固相,而共析转变后的产物是液相
查看完整题目与答案
【简答题】请简要描述马可波罗个人及其游记。
查看完整题目与答案
【单选题】– The kidnapped American captain was rescued from the Somali pirates(海盗). -- But for the help of the US Navy, he _______ freed then.
A.
may not be
B.
wouldn’t have been
C.
wouldn’t be
D.
mustn’t have been
查看完整题目与答案
【单选题】共析转变和共晶转变的根本区别是________。
A.
共析转变前的母相是液相,而共晶转变前的母相是固相
B.
共析转变前的母相是固相,而共晶转变前的母相是液相
C.
共晶转变后的产物是固相,而共析转变后的产物是液相
D.
共析转变后的产物是固相,而共晶转变后的产物是液相
查看完整题目与答案
相关题目:
【多选题】下列命题中,哪一项属于实证经济学(客观描述经济现象,不包含价值判断)的表述( )
A.
为了抑制通胀压力,我国的存款准备金率从2008年初的14.5%上调至21.5%。
B.
温家宝总理近日(2011年11月6日)在圣彼得堡表示:“对于房地产一系列的调控措施,决不可有丝毫动摇,我们的目标是要使房价回归到合理的价格。”
C.
改革开放以来,中国经济快速增长,GDP年均增长率约10%,现已成为世界第二大经济实体。
D.
我国个人所得税的起征点已经超过5000元
查看完整题目与答案
【判断题】pn结的正向偏压可降低pn结的势垒高度
A.
正确
B.
错误
查看完整题目与答案
【单选题】Captain Smith didn't inform. his officers of the tree situation because he didn't want to cause a panic.
A.
Y
B.
N
C.
NG
查看完整题目与答案
【简答题】______ the determined captain , all the passengers on board wouldn ' t have been saved. [ A]It had not been for [ B ] Had it not been for [ C]lf it had not for [ D] Not had been for
查看完整题目与答案
【单选题】Tothe sea captain’s surprise , he found that travel could also be quite pieasant .
A.
. earth
B.
. 1and
C.
. ground
D.
. plain
查看完整题目与答案
【单选题】At first the captain didn't worry because the ship was said to be _______.
A.
unsinkable
B.
perfect
C.
unprepared
D.
unusually
查看完整题目与答案
【单选题】共析转变和共晶转变的根本区别是()
A.
共析转变前的母相是固相,而共晶转变前的母相是液相
B.
共析转变前的母相是液相,而共晶转变前的母相是固相
C.
共析转变后的产物是固相,而共晶转变后的产物是液相
D.
共晶转变后的产物是固相,而共析转变后的产物是液相
查看完整题目与答案
【简答题】请简要描述马可波罗个人及其游记。
查看完整题目与答案
【单选题】– The kidnapped American captain was rescued from the Somali pirates(海盗). -- But for the help of the US Navy, he _______ freed then.
A.
may not be
B.
wouldn’t have been
C.
wouldn’t be
D.
mustn’t have been
查看完整题目与答案
【单选题】共析转变和共晶转变的根本区别是________。
A.
共析转变前的母相是液相,而共晶转变前的母相是固相
B.
共析转变前的母相是固相,而共晶转变前的母相是液相
C.
共晶转变后的产物是固相,而共析转变后的产物是液相
D.
共析转变后的产物是固相,而共晶转变后的产物是液相
查看完整题目与答案
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