使用SNMP协议进行网络管理，下面的描述中错误的是（）。A．管理站向代理发出请求，代

Why is （） fun？What de lights may its practitioner expect as his reward？First is the sheer joy of making things. As the child delights in his mud pie, so the adult enjoys building things, especially things of his own design. Second is the pleasure of making things that are useful to other people. Third is the fascination of fashioning complex puzzle-like objects of interlocking moving parts and watching them work in subtle cycles, playing out the consequences of principles built in from the beginning. Fourth is the joy of always learning, which springs from the （） nature of the task. In one way or another the problem is ever new, and its solver learns something: sometimes （）, sometimes theoretical, and sometimes both. Finally, there is the delight of working in such a tractable medium. The （）, like the poet, works only slightly removed from pure thought-stuff. Few media of creation are so flexible, so easy to polish and rework, so readily capable of realizing grand conceptual structures.

Yet the program （）, unlike the poet’s words, is real in the sense that it moves and works, producing visible outputs separate from the construct itself. It prints results, draws pictures, produces sounds, moves arms. Programming then is fun because it gratifies creative longings built deep within us and delights sensibilities we have in common with all men.

Why is （） fun？

A．programming

B．composing

C．working

D．writing

甲投资公司(以下简称甲公司)与乙国有企业(以下简称乙企业)以甲公司出资金企业提供场地的方式成立了一家大型超市。超市成立后，与丙劳务派遣公司(以下简称丙公司)签订劳务派遣协议，由丙公司派遣李某到超市工作。不久，甲公司与乙企业产生纠纷，导致超市停业。超市于是将李某退回丙公司，丙公司以李某经过调整工作岗位仍不胜任工作为由解除了李某的劳动合同，李某认为，其在超市的工作属于法律规定禁止实施劳务派遣的范围，随向劳动行政部门投诉，要求追究甲乙丙三家公司的法律责任。

丙公司解除李某劳动合同，符合法律规定的做法是（）。

A.李某因被超市退回，丙公司在解除与李某的劳动合同时无需支付经济补偿 

B.丙公司解除与李某的劳动合同时，无需考虑李某被退回的原因 

C.李某经调整工作岗位仍不胜任工作而被退回，丙公司可以解除与李某的劳动合同 

D.丙公司只可在与李某协商一致的情况下才能解除劳动合同

前朝后寝

下列关于国有土地租赁的期限的说法，不正确的是( )。

A．可以是无期限的租赁
B．根据情况实行短期租赁和长期租赁
C．短期租赁的期限不超过5年
D．长期租赁的期限不超过法律规定的同类用途土地出让最高期限

材料消耗用量定额与损耗量定额之间的关系正确的是（）。

A．材料消耗定额=材料消耗净用量-材料损耗量

B．

C．材料消耗定额=材料消耗净用量×(1-损耗率)

D．材料损耗量=材料净用量×损耗率