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【单选题】
已知Kaθ(HAc)=1．75×10-5，将0．25 mol·L-1HAc溶液与等体积NaAc溶液混合，若混合溶液的pH=4．05，则NaAc溶液的浓度应为( )。A.
2．56
B.
0．098
C.
1．28
D.
0．049
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【简答题】说明下列滚动轴承类型代号的含义 (1)N2313 (2)61710 / P6
【单选题】The poetry of Hughes's forerunners is characteristic of ______
A.
its natural, crude flavor.
B.
its distorted depiction of people's daily life.
C.
its penetrating sight.
D.
its fantastical enthusiasm.
【单选题】Which of the following statements is NOT true about Hughes?
A.
Hughes left America for Europe when he was nineteen.
B.
Hughes tried a variety of literary genres.
C.
Hughes read widely.
D.
Hughes helped the careers of many younger writers.
【简答题】Ted Hughes discovered many long poems submitted for poetry competition were composed on computers.
【判断题】Though still using conventional poetic stanzas and rhymes, Hughes involved elements of jazz and the sound of black speech in his poetry.
A.
正确
B.
错误
【单选题】4 月 4 日 ,由 ( ) 、徐州舰和千岛湖舰组成的中国海军第 29 批护航编队从浙江舟山某军港起航,远赴亚丁湾、索马里海域执行护航任务。自 2008 年 12 月 2 6 日中国海军首次赴亚丁湾护航以来,已完成了 6400 余艘中外船舶的护航任务。
A.
滨州舰
B.
杭州舰
C.
海南舰
D.
青岛舰
【简答题】背景： 某工程项目，业主通过招标与甲建筑公司签订了土建工程施工合同，包括A、B、C、D、E、F、 G、H八项工作，合同工期36周。业主与乙安装公司签订了设备安装施工合同，包括设备安装与调试工作，合同工期18周。编制了图4-1所示的网络进度计划。 该工程施工过程中发生了以下事件： 事件一：基础工程施工时，业主负责供应的钢筋混凝土预制桩供应不及时，使A工作延误 0.7周。 事件二：B工作施工后进行检查...
【单选题】Hughes began writing poetry in ________.
A.
his childhood
B.
high school
C.
college
D.
his old age
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