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【单选题】
已知：2CO(g)+O 2 (g)==2CO 2 (g) △=-566kJ·mol -1 N 2 (g)+O 2 (g)==2NO(g) △=+180kJ·mol -1 则2CO(g)+2NO(g)==N 2 (g)+2CO 2 (g) 的△是 [     ]
A.
-386 kJ·mol -1
B.
+386 kJ·mol -1
C.
-746 kJ·mol -1
D.
+746 kJ·mol -1
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举一反三
【单选题】连消塔为( )。
A.
预热设备
B.
配料设备
C.
加热设备
D.
保温设备
查看完整题目与答案
【单选题】用额定电压为220伏的两只灯泡串联,一只为100瓦,另一只为40瓦,串联后加380伏电压,则( )。
A.
１００瓦灯泡烧坏
B.
１００瓦、４０瓦灯泡都烧坏
C.
两只灯泡全不烧坏
D.
４０瓦灯泡烧坏
查看完整题目与答案
【单选题】5 达到相同转化率所对应的( )相同是一级反应特征的重要判剧。
A.
反应时间
B.
速率常数
C.
初浓度
D.
残余浓度
查看完整题目与答案
【判断题】存货具有降低进货成本的功能
A.
正确
B.
错误
查看完整题目与答案
【单选题】Most goods and services produced at home
A.
a. and most goods and services produced illegally are included in GDP.
B.
b. are included in GDP while most goods and services produced illegally are excluded from GDP.
C.
c. are excluded from GDP while most goods and services produced illegally are included in GDP
D.
d. and most goods and services produced illegally are excluded from GDP.
查看完整题目与答案
【简答题】存货具有降低进货成本的功能。（ ）
查看完整题目与答案
【单选题】连消塔灭菌温度为( )?
A.
130-140℃
B.
110-120℃
C.
150-160℃
查看完整题目与答案
【简答题】连消塔是将培养基用蒸汽 加热至 的设备,分为 和 两类。
查看完整题目与答案
【单选题】Most goods and services produced at home
A.
and most goods and services produced illegally are included in GDP.
B.
are included in GDP while most goods and services produced illegally are excluded from GDP.
C.
are excluded from GDP while most goods and services produced illegally are included in GDP.
D.
and most goods and services produced illegally are excluded from GDP.
查看完整题目与答案
【单选题】对于以下代码：void f(){ int i,j=6;}以下哪句话是对的？
A.
i不会被初始化，而j是6
B.
i和j的初始值都是6
C.
i被初始为0，而j是6
D.
不能通过编译
查看完整题目与答案
相关题目：
【单选题】连消塔为( )。
A.
预热设备
B.
配料设备
C.
加热设备
D.
保温设备
查看完整题目与答案
【单选题】用额定电压为220伏的两只灯泡串联,一只为100瓦,另一只为40瓦,串联后加380伏电压,则( )。
A.
１００瓦灯泡烧坏
B.
１００瓦、４０瓦灯泡都烧坏
C.
两只灯泡全不烧坏
D.
４０瓦灯泡烧坏
查看完整题目与答案
【单选题】5 达到相同转化率所对应的( )相同是一级反应特征的重要判剧。
A.
反应时间
B.
速率常数
C.
初浓度
D.
残余浓度
查看完整题目与答案
【判断题】存货具有降低进货成本的功能
A.
正确
B.
错误
查看完整题目与答案
【单选题】Most goods and services produced at home
A.
a. and most goods and services produced illegally are included in GDP.
B.
b. are included in GDP while most goods and services produced illegally are excluded from GDP.
C.
c. are excluded from GDP while most goods and services produced illegally are included in GDP
D.
d. and most goods and services produced illegally are excluded from GDP.
查看完整题目与答案
【简答题】存货具有降低进货成本的功能。（ ）
查看完整题目与答案
【单选题】连消塔灭菌温度为( )?
A.
130-140℃
B.
110-120℃
C.
150-160℃
查看完整题目与答案
【简答题】连消塔是将培养基用蒸汽 加热至 的设备,分为 和 两类。
查看完整题目与答案
【单选题】Most goods and services produced at home
A.
and most goods and services produced illegally are included in GDP.
B.
are included in GDP while most goods and services produced illegally are excluded from GDP.
C.
are excluded from GDP while most goods and services produced illegally are included in GDP.
D.
and most goods and services produced illegally are excluded from GDP.
查看完整题目与答案
【单选题】对于以下代码：void f(){ int i,j=6;}以下哪句话是对的？
A.
i不会被初始化，而j是6
B.
i和j的初始值都是6
C.
i被初始为0，而j是6
D.
不能通过编译
查看完整题目与答案