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【单选题】
温度不同的两物体相互接触时 [ ]A.
．热量总是从低温物体传向高温物体
B.
．热量总是从高温物体传向低温物体
C.
．温度总是从高温物体传向低温物体
D.
．热量总是从含热量多的传向热量少的
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反馈参考答案：
举一反三
【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
【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.
【简答题】存货具有降低进货成本的功能。（ ）
【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。
【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.
【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
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