昆虫学家用人工诱变的方法使昆虫产生基因突变，导致酯酶活性升高，该酶可催化分解有机磷农

单词拼写（按要求写出单词正确形式，每个1分，共10分）

小题1:I drew the c_____from the facts that he was hardworking

小题2:He was completely a_____in a book and didn’t hear your call

小题3:I didn’t expect that he should promise with d________(高兴地)

小题4:The man left a good i______on his new boss

小题5:She is his daughter from a p_______marriage

小题6:She is very ______(乐观的)about the outcome of the talks

小题7:The story he told me is _________(难以忘怀的)

小题8:The boy is clever,he is g_____in music

小题9:There is only a t________solution to the problem

小题10:What are the ________(症状)of the first degree burns?

下列法律行为中属于单方法律行为的是( )。

A．李某订立遗嘱，将全部遗产都分给长子继承

B．王某为购买轿车提供订金

C．费某为于某代理购买化肥

D．张某自动放弃了对其父亲财产的继承

网元退服割接完成（）小时内，省分公司需将主设备OMC内多余的垃圾数据清理完毕。

A.12

B.24

C.48

D.72

体现企业目标成员职责的组织体系是（）组织

A.正式

B.非正式

C.权力

D.决策性

我国土地所有权可以分为国家土地所有权、集体土地所有权和私人土地所有权。