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以下哪一项不属于图书馆提供的服务（ ）？
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文献借阅
B.
邮箱申请
C.
馆际互借
D.
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举一反三
【单选题】Father often tells me——too much time on computer s.
A.
don’t spend   
B.
not spend   
C.
not to spend
D.
not spending
查看完整题目与答案
【单选题】The way that people spend their money, and the objects on which they spend it, are the last areas where free choice and individuality can be expressed. The choice reflects personal taste, the way peop...
A.
imagine
B.
possess
C.
have
D.
own
查看完整题目与答案
【单选题】The way that people spend their money, and the objects on which they spend it, are the last areas where free choice and individuality can be expressed. The choice reflects personal taste, the way peop...
A.
imagine
B.
possess
C.
have
D.
own
查看完整题目与答案
【简答题】请找出该可行性研究报告存在哪些问题。 吸发式电推剪生产可行性研究报告 一、国际国内理发业目前使用的电推剪的缺点 据初步调查,国际(亚洲如韩国和日本、美洲如美国、欧洲如意大利、中东如以色列等)国内理发业目前广泛使用的电推剪在进行理发作业时,存在如下缺点:第一,被剪断的发屑以及头屑会散落飞到人们的头上、脸上、子里、衣服上、理发座椅及其附近地面上,同样会散落或飞溅到理发人员的脸上、双手和衣服上,不仅令人...
查看完整题目与答案
【单选题】在 某 温 度 下, 反 应: 2H 2 (g) + O 2 (g) → 2H 2 O(g) △ r Hm θ (1) 2H 2 (g) + O 2 (g) → 2H 2 O(l) △ r Hm θ (2) 则 在 该 温 度 下, 反 应 H 2 O(l) → H 2 O(g) 的 △ r Hm θ 为 .............. ( )。
A.
[ △ r Hm θ (1) - △ r Hm θ (2) ] / 2 ；
B.
△ r Hm θ (2) - △ r Hm θ (1) ；
C.
[ △ r Hm θ (2) - △ r Hm θ (1) ] / 2 。
D.
△ r Hm θ (1) - △ r Hm θ (2) 。
查看完整题目与答案
【单选题】电池反应 2H2（g）+O2(g)→2H2O(l) E1 H2（g）+1/2O2(g)→H2O(L) E2则有：( )
A.
E 1 =1/2E 2
B.
E 1 =E 2
C.
E 1 =2E 2
D.
不能确定
查看完整题目与答案
【简答题】着改革开放的深入发展，我国人民生活水平不断提高，人们的消费观念和方式发生了很大变化，对此，某校学生就本校中学生消费情况进行调查，调查结果如下： 材料一：学生生日宴请：90%以上学生过生日都要相互宴请，购买礼物赠送，而且宴请规模、赠送礼物程度呈扩大趋势。平时节日：98%以上同学都互相送贺卡，且贺卡档次越来越高，价格越来越贵。原因：同学们都这么做，不请不送丢脸面。 材料二：中学生个人消费情况：手中...
查看完整题目与答案
【简答题】As to the time youngsters spend on electronic devices, they spend __________ hours a day altogether. [A] 6.5 [B] 7.5 [C] 9.5 [D] 11
查看完整题目与答案
【简答题】已知下列反应： (1)2H 2 O 2 (1)→2H 2 O(1)+O 2 (g) =-196.1kJ·mol -1 (2)H 2 O(1)→H 2 O(g) =44.01kJ·mol -1 求：(1)180gH 2 O 2 (l)分解的反应焓变△ r H Θ ? (2)反应H 2 O 2 (l)→H 2 O(l)+1/2O 2 (g)的 ? (3)反应2H 2 O(l)+O 2 (g)→2H 2...
查看完整题目与答案
【单选题】How people spend their nights according to the text?
A.
People could spend their nights anywhere whether it was their home or not.
B.
People only served their friends to spend their nights at home.
C.
People had to return to their home whether they were far away or not.
D.
Strange people had to spend their nights in the field when it got dark.
查看完整题目与答案
相关题目：
【单选题】Father often tells me——too much time on computer s.
A.
don’t spend   
B.
not spend   
C.
not to spend
D.
not spending
查看完整题目与答案
【单选题】The way that people spend their money, and the objects on which they spend it, are the last areas where free choice and individuality can be expressed. The choice reflects personal taste, the way peop...
A.
imagine
B.
possess
C.
have
D.
own
查看完整题目与答案
【单选题】The way that people spend their money, and the objects on which they spend it, are the last areas where free choice and individuality can be expressed. The choice reflects personal taste, the way peop...
A.
imagine
B.
possess
C.
have
D.
own
查看完整题目与答案
【简答题】请找出该可行性研究报告存在哪些问题。 吸发式电推剪生产可行性研究报告 一、国际国内理发业目前使用的电推剪的缺点 据初步调查,国际(亚洲如韩国和日本、美洲如美国、欧洲如意大利、中东如以色列等)国内理发业目前广泛使用的电推剪在进行理发作业时,存在如下缺点:第一,被剪断的发屑以及头屑会散落飞到人们的头上、脸上、子里、衣服上、理发座椅及其附近地面上,同样会散落或飞溅到理发人员的脸上、双手和衣服上,不仅令人...
查看完整题目与答案
【单选题】在 某 温 度 下, 反 应: 2H 2 (g) + O 2 (g) → 2H 2 O(g) △ r Hm θ (1) 2H 2 (g) + O 2 (g) → 2H 2 O(l) △ r Hm θ (2) 则 在 该 温 度 下, 反 应 H 2 O(l) → H 2 O(g) 的 △ r Hm θ 为 .............. ( )。
A.
[ △ r Hm θ (1) - △ r Hm θ (2) ] / 2 ；
B.
△ r Hm θ (2) - △ r Hm θ (1) ；
C.
[ △ r Hm θ (2) - △ r Hm θ (1) ] / 2 。
D.
△ r Hm θ (1) - △ r Hm θ (2) 。
查看完整题目与答案
【单选题】电池反应 2H2（g）+O2(g)→2H2O(l) E1 H2（g）+1/2O2(g)→H2O(L) E2则有：( )
A.
E 1 =1/2E 2
B.
E 1 =E 2
C.
E 1 =2E 2
D.
不能确定
查看完整题目与答案
【简答题】着改革开放的深入发展，我国人民生活水平不断提高，人们的消费观念和方式发生了很大变化，对此，某校学生就本校中学生消费情况进行调查，调查结果如下： 材料一：学生生日宴请：90%以上学生过生日都要相互宴请，购买礼物赠送，而且宴请规模、赠送礼物程度呈扩大趋势。平时节日：98%以上同学都互相送贺卡，且贺卡档次越来越高，价格越来越贵。原因：同学们都这么做，不请不送丢脸面。 材料二：中学生个人消费情况：手中...
查看完整题目与答案
【简答题】As to the time youngsters spend on electronic devices, they spend __________ hours a day altogether. [A] 6.5 [B] 7.5 [C] 9.5 [D] 11
查看完整题目与答案
【简答题】已知下列反应： (1)2H 2 O 2 (1)→2H 2 O(1)+O 2 (g) =-196.1kJ·mol -1 (2)H 2 O(1)→H 2 O(g) =44.01kJ·mol -1 求：(1)180gH 2 O 2 (l)分解的反应焓变△ r H Θ ? (2)反应H 2 O 2 (l)→H 2 O(l)+1/2O 2 (g)的 ? (3)反应2H 2 O(l)+O 2 (g)→2H 2...
查看完整题目与答案
【单选题】How people spend their nights according to the text?
A.
People could spend their nights anywhere whether it was their home or not.
B.
People only served their friends to spend their nights at home.
C.
People had to return to their home whether they were far away or not.
D.
Strange people had to spend their nights in the field when it got dark.
查看完整题目与答案