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【单选题】
有位发明家声称他设计了一种机器,当这台机器完成一个循环时,可以从单一热源吸收了1000kJ的热,并输出1200kJ的功,这台热机()
A.
违反了热力学第一定律
B.
违反了热力学第二定律
C.
违反了热力学第一定律和第二定律
D.
即不违反热力学第一定律也不违反第二定律
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参考答案：
举一反三
【单选题】The children are having a good time, ______ with sand, others with toys．
A.
some of them playing
B.
some of them are playing
C.
some of them
D.
who playing
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【单选题】在坐标网中, X代表的是( )。
A.
东西方向
B.
南北方向
C.
正北方向
D.
正东方向
查看完整题目与答案
【单选题】下列哪项不是紫苏的功效
A.
发汗解表
B.
利水消肿
C.
行气宽中
D.
解鱼蟹毒
查看完整题目与答案
【单选题】定义了数组seg[4]= {ox01,0x02,0x03,0x04}; 则seg[2] = ( )
A.
0x01
B.
0x02
C.
0x03
D.
0x04
查看完整题目与答案
【判断题】电控发动机在起动时要把油门踩到底。
A.
正确
B.
错误
查看完整题目与答案
【判断题】小窝可以巧搭配讲的是课程简介。
A.
正确
B.
错误
查看完整题目与答案
【单选题】Some parents are always comparing their children __________other children. [     ]
A.
for
B.
to
C.
with
D.
as
查看完整题目与答案
【判断题】定时器最大计时范围是3276.7S
A.
正确
B.
错误
查看完整题目与答案
【单选题】测验1 逻辑表达式 A + BC 等价的逻辑表达式为( )
A.
(A ＋ B)(A ＋ C)
B.
A+C
C.
AB
D.
B+C
查看完整题目与答案
【单选题】'Part-time' children______.
A.
spend some of their time with their half brothers and some of their time with their half sisters
B.
spend all of their time with one parent from the previous marriage
C.
are shared between the two former spouses
D.
cannot stay with 'full-time' children
查看完整题目与答案
相关题目：
【单选题】The children are having a good time, ______ with sand, others with toys．
A.
some of them playing
B.
some of them are playing
C.
some of them
D.
who playing
查看完整题目与答案
【单选题】在坐标网中, X代表的是( )。
A.
东西方向
B.
南北方向
C.
正北方向
D.
正东方向
查看完整题目与答案
【单选题】下列哪项不是紫苏的功效
A.
发汗解表
B.
利水消肿
C.
行气宽中
D.
解鱼蟹毒
查看完整题目与答案
【单选题】定义了数组seg[4]= {ox01,0x02,0x03,0x04}; 则seg[2] = ( )
A.
0x01
B.
0x02
C.
0x03
D.
0x04
查看完整题目与答案
【判断题】电控发动机在起动时要把油门踩到底。
A.
正确
B.
错误
查看完整题目与答案
【判断题】小窝可以巧搭配讲的是课程简介。
A.
正确
B.
错误
查看完整题目与答案
【单选题】Some parents are always comparing their children __________other children. [     ]
A.
for
B.
to
C.
with
D.
as
查看完整题目与答案
【判断题】定时器最大计时范围是3276.7S
A.
正确
B.
错误
查看完整题目与答案
【单选题】测验1 逻辑表达式 A + BC 等价的逻辑表达式为( )
A.
(A ＋ B)(A ＋ C)
B.
A+C
C.
AB
D.
B+C
查看完整题目与答案
【单选题】'Part-time' children______.
A.
spend some of their time with their half brothers and some of their time with their half sisters
B.
spend all of their time with one parent from the previous marriage
C.
are shared between the two former spouses
D.
cannot stay with 'full-time' children
查看完整题目与答案
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