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搜题
【单选题】
（）是一种最简便而且有效的短路保护电器。A.
组合开关
B.
热继电器
C.
熔断器
D.
接触器
拍照语音搜题，微信中搜索"皮皮学"使用
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知识点：
皮皮学刷刷变学霸
举一反三
【单选题】当x=3、y=5、z=7时,表达式!(x-y>0)||(y-z<0)的结果是?< /div>
A.
0
B.
1
C.
true
D.
false
【简答题】Did you enjoy yourself yesterday? I suppose you do. But I’d like to tell you what a bad day I had yesterday. Nothing just went wrong. On the morning, my alarm clock didn’t ring, since I woke up an hou...
【简答题】汇票、本票和支票都有即期的和远期的两种。 （ ）
【简答题】短文改错。 Did you enjoy yourself yesterday? I suppose you did. But I'd like to tell you how a bad day I had yesterday. Nothing just went wrong. In the morning, my alarm clock didn't ring, so I woke up an ...
【单选题】当三个非负实数x、y、z满足关系式x+3y+2z=3与3x+3y+z=4时，M=3x-2y+4z的最小值和最大值分别是（ ）
A.
- 1 7 ，6
B.
- 1 6 ，7
C.
1 5 ，8
D.
- 1 8 ，5
【简答题】IV.短文改错(10) Did you enjoy yourself yesterday? I suppose you do. But I’d like to tell you what a bad day I had yesterday. Everything just went wrongly. On the morning, my alarm clock didn’t ring, since...
【简答题】-Did you enjoy yourself at the party? -Yes.I’ve never been to ____ one before. A.a more excited B.the most excited C.a more exciting D.the most exciting
相关题目：
【单选题】当x=3、y=5、z=7时,表达式!(x-y>0)||(y-z<0)的结果是?< /div>
A.
0
B.
1
C.
true
D.
false