【单选题】【消耗次数:1】
矿井主要隔爆水袋应设水量不得小于( )
A.400L/m2
B.200L/m2
C.300L/m2
D.350L/m2
参考答案:
复制
纠错
相关题目
【简答题】 已知正规式:r=1(0|1)*101,要求完成下面三个任务。①构造NFA M1,使得L(M1)=L(r);②把NFA M1转化成DFA M2,使得L(M1)=L(M2)(一定要写出具体过程);③构造一个最小化的M3,使得L(M2)=L(M3)(一定要写出具体过程).
【判断题】 {0, 1, 2, L, m - 1}是模m的最小非负完全剩余系.
①  正确
②  错误
【单选题】 已知空间三条直线l,m,n,若l与m异面,且l与n异面,则 (   )
①  m与n异面
②  m与n相交
③  m与n平行
④  m与n异面、相交、平行均有可能
【单选题】 设:inta=1,b=2,c=3,d=4,m=2,n=2;执行(m=a>b)&&(n=c>d)后n的值为()。
①  1
②  2
③  3
④  4
【单选题】 已知<img src=https://huaweicloudobs.ahjxjy.cn/B86018F9D6072EE0F72D5F576D0C0EB5.png title=YSVC$UR2HGG(M7V64L~MZGG.png alt=YSVC$UR2HGG(M7V64L~MZGG.png/>
①  <img src=https://huaweicloudobs.ahjxjy.cn/0F8078DEB81F2B707665E7BF08093B26.png title=7HLD%(A~GZSKODM7A~Y0C10.png alt=7HLD%(A~GZSKODM7A~Y0C10.png/>
②  <img src=https://huaweicloudobs.ahjxjy.cn/13109C2017F73615528DEE4A33E8D866.png title=G{Q)J7M`LY]L[I84K`7A%2N.png alt=G{Q)J7M`LY]L[I84K`7A%2N.png/>
③  <img src=https://huaweicloudobs.ahjxjy.cn/A1A456DC9C925C0E74375665375FE260.png title=P)M6PC(@P{U4LK7Y]V`LCMJ.png alt=P)M6PC(@P{U4LK7Y]V`LCMJ.png/>
④  <img src=https://huaweicloudobs.ahjxjy.cn/51DBBFD2B37C67C7C19490D3BB4EB972.png title=U_X9~]1NLP[D}FY{K}FL2B6.png alt=U_X9~]1NLP[D}FY{K}FL2B6.png/>
【单选题】 有一基础,宽度4m,长度8m,基底附加压力90 kN/m2,中心线下6m处竖向附加应力为58.28kN/m2,试问另一基础宽度为2m,长度为4m,基底附加压力为100 kN/m2,角点下3m处的附加应力为多少?( )。
①  16.19kN/m2
②  54.76kN/m2
③  32.38kN/m2
④  63.26kN/m2
【简答题】 M1=_____ +商业银行存款,M2=M1+_____ 。
【单选题】 体重指数(kg/m2)是()。
①  观察单位
②  数值变量
③  名义变量
④  等级变量
⑤  研究个体
【单选题】 某单层工业厂房外围水平面积3000m2,内隔工具间一层,面积300m2,另有钢构造柱操作平台100m2,外有柱水平投影面积20m2,则该厂房建筑面积为()m2
①  3000
②  3020
③  3320
④  3420
【单选题】 某单层工业厂房外围水平面积3000m2,内隔工具间一层,面积300m2,另有钢构造柱操作平台100m2,外有柱水平投影面积20m2,则该厂房建筑面积为 ( )m2。
①  3000
②  3020
③  3320
④  3420
随机题目
【单选题】 The committee is due to __________ its report by the end of this year.
①  release
②  relieve
③  relate
④  retain
【单选题】 Air pollution __________ , this city is still a good place to live in.
①  being greatly reduced
②  greatly being reduced
③  to greatly reduce
④  greatly to reduce
【单选题】 TOEFL is a test for students __________ native language is not English.
①  that
②  of whom
③  whose
④  which
【单选题】 __________ all our efforts to save the school, the authorities decided to close it.
①  As for
②  Besides
③  Except
④  Despite
【单选题】 That was so serious a matter that I had no choice but __________ the police.
①  called in
②  calling in
③  call in
④  to call in
【单选题】 Well done. Congratulations on your success.
①  Thank you very much
②  Oh, no, no
③  No, I didn’t do very well
④  Sorry, I couldn’t any better
【单选题】 Good morning, sir. May I help you?
①  No, I don’t buy anything
②  No, I don’t need your help
③  Yes, I need some sugar
④  Oh, no. That’s OK
【单选题】 I’d like to take you to the coffee house on the corner.
①  Thank you. You shouldn’t’ do that
②  Thanks, I’d like to go with you
③  No, you can’t say so
④  No, no, You can’t do that
【单选题】 He’s determined to finish the job __________ long it takes.
①  no matter
②  however
③  wherever
④  whatever
【单选题】 -- Could I speak to John Harris, please.
①  Oh, how are you
②  I’m John
③  I’m listening
④  Speaking