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【判断题】
13）功率越大的电器，需要的电压一定大。A.
正确
B.
错误
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参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】关于运动和力的关系，下列说法中正确的是 ( )
A.
如果物体在运动，那么它一定受到力的作用
B.
力是物体获得速度和位移的原因
C.
力只能改变物体运动速度的大小
D.
力是使物体产生加速度的原因
【单选题】The effects of almost universal employment were overwhelming in that ______.
A.
the household and village community disappeared
B.
men now traveled enormous distances to their places of work
C.
young and old people became superfluous components of society
D.
the work status of those not in paid employment suffered
【单选题】In previous times, when fresh meat was in short ______, pigeons were kept by many household as a source of food.
A.
store
B.
provision
C.
reserve
D.
supply
【单选题】The effects of almost universal employment were overwhelming in that_______．
A.
the household and village community disappeared completely
B.
men now travelled enormous distances to their places of work
C.
young and old people became superfluous components of society
D.
the work status of those not in paid employment suffered
【单选题】In previous times, when fresh meat was in short ______, pigeons were kept by many households as a source of food.
A.
store
B.
provision
C.
reserve
D.
supply
【单选题】战国时,商鞅为了树立威信,推进改革,便下令在城门外立一根三丈长的木头,谁能把这根木头搬到北门,赏金十两。有人将木头扛到了北门,商鞅当众兑现诺言。下列故事寓意与之一致的是 ( )
A.
宋代有个叫杨时的人，是理学家程颐的学生，他40多岁时到洛阳去拜见程颐，当他与另一位同学来到程颐家的时候，天下起了大雪，程颐正在睡午觉，他们就站在门外静静地等候，直到程颐醒来，这时雪已经下了一尺多深。
B.
一个商人看到一个衣衫褴褛的铅笔推销员，出于怜悯，他塞给那人一元钱，不一会，他返回来，从卖笔员那儿取出几支铅笔，并抱歉地解释自己忘取笔了，末了说：“你跟我都是商人，你有东西要卖，而且上边有标价。”
C.
季布从小为人正直，乐于助人，且十分重视承诺，凡是答应别人的事情一定做到。因此在当地人中享有很高的声誉，广受欢迎。乡亲们都说：“得黄金百斤，不如得季布一诺。”
D.
有一位老人在回乡的火车上不停地把玩一双心爱的新鞋子。火车在一个转弯处把老人的一只鞋子甩出了窗外。老人在经过片刻的寂静之后，随即将另一只鞋也拿起来，用力扔出窗外。
【简答题】What do you mix with bicarb soda and cloudy ammonia to make a general all-purpose household cleaner?
【单选题】关于力和运动的关系,下列说法中正确的是
A.
力是维持物体运动状态的原因
B.
力是改变物体运动状态的原因
C.
只有在力的作用下物体才能运动
D.
只要有力作用在物体上，物体的运动状态就一定改变
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