甲企业委托乙企业为其生产一批通用机械配件，双方约定4月1日交货_爱下问搜题

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问题问答题

甲企业委托乙企业为其生产一批通用机械配件，双方约定4月1日交货，验货合格后10日内甲企业支付货款。 2月1日，乙企业有确切证据得知甲企业经营状况严重恶化，已丧失履行债务能力，遂停止为其生产配件，并与甲企业交涉，要求其在一个月内提供担保，否则无法继续履行合同。3月25日，乙企业在甲企业仍未恢复履行债务能力且未提供合同担保的情况下，通知与其解除合同。根据以上事实，回答下列问题： (1) 乙企业单方中止履行合同并要求甲企业提供担保的行为是否合法为什么 (2) 乙企业单方解除合同的行为是否合法为什么

答案

参考答案：

解析：(1) 合法。根据《合同法》的规定，应当先履行债务的当事人，有确切证据证明对方有下列情况之一的，可以行使不安抗辩权，中止合同履行：①经营状况严重恶化；②转移财产、抽逃资金，以逃避债务；③丧失商业信誉；④有丧失或者可能丧失履行债务能力的其他情形。在本案中，乙企业有确切证据得知甲企业经营状况严重恶化，已丧失履行债务能力。因此，乙企业有权单方中止履行合同并要求甲企业提供担保。 (2) 合法。根据《合同法》的规定，中止履行后，对方在合理期限内未恢复履行能力并且未提供适当担保的，中止履行的一方可以解除合同。

问答题

如图所示，在y轴的右方有一匀强磁场，磁感强度为B，方向垂直纸面向外．在x轴的下方，有一匀强电场，场强为E，方向平行x轴向左．有一绝缘板放置有y轴处，且与纸面垂直．现在一质量为m，带电量为q的粒子由静止经过加速电压为U的电场加速，然后以垂直于绝缘板的方向从A处直线穿过绝缘板，而后从x轴的K处以与x车正向夹角为60°的方向进入电场和磁场迭加的区域，最后到达y轴上的C点．已知OD长为L，不计粒于重力，粒子穿过绝缘板后电量不变，求：

（1）粒子经过绝缘板时损失的动能；

（2）粒子到达C点时的速度大小．

完形填空

完形填空（共20小题；每小题2分，满分40分）
It’s good to make mistakes, and here is why．
First of all, mistakes are a clear 36 that you are trying new things．It’s always   37  to try new things because when you are trying new things you are   38 ．If you never try anything new, how can you   39 ? The simple answer is “You can’t”．With few exceptions, every single detail of development is the   40 of someone trying something new．
When you are making mistakes, you are 41  ．Edison failed 10,000 times before he   42 the light bulb．When asked how it felt to 43  that many times, he said that he hadn’t failed 10,000 times, but rather had learned 10,000 things that didn’t 44 ．
Finally, when you make a mistake you are much   45  to success．Why ?
When all is done, you will have tried some number of things before you succeed． 46  you make a mistake you eliminate (排除) one of those things and are one step closer．
But this all doesn’t mean that you should go ahead   47  considering the consequences of a mistake．Quite the contrary, when you try something new, you   48   be willing to set some reasonable limits, so that in the event that it doesn’t   49  the way you want it to, you will be in a position to try again．
We all have   50  resources in time and money, so don’t blow them all on one   51  to a problem．Realize that it probably won’t be perfect the first time, and allocate (分配) these resources properly so you can learn,   52   corrections, and try it again．Only by 53    and using your mistakes in this way, can you make significant 54   in your business or career．
As an old saying goes, “If you’re not making mistakes, you’re not trying hard enough．”
So go 55  and make mistakes．And learn．And grow．And succeed．

A．interesting

B．Even though

B．contribution