【单选题】【消耗次数:1】
水泥强度等级根据胶砂法测定水泥()的抗折强度和抗压强度来判定。
3d与7d
7d与14d
3d与28d
7d与28d
参考答案:
复制
纠错
相关题目
【判断题】 硅酸盐水泥的强度等级是根据3d、28d抗折、抗压强度评定的
①  正确
②  错误
【单选题】 水泥强度等级根据胶砂法测定水泥( )的抗折强度和抗压强度来判定。
①  3d与7d
②  7d与14d
③  3d与28d
④  7d与28d
【判断题】 快硬硅酸盐水泥的抗压强度等级以3d龄期的抗压强度来表示
①  正确
②  错误
【判断题】 水泥的水化硬化一般在28d内发展速度较慢,28d后发展速度较快。( )
①  正确
②  错误
【单选题】 <img title=28-C.jpg alt=28-C.jpg src=https://huaweicloudobs.ahjxjy.cn/0608466DDC3BAE812DD3C7D9F7DE5D17.jpg/>
①  <img title=28-1.jpg alt=28-1.jpg src=https://huaweicloudobs.ahjxjy.cn/867AF13538FDA5D67BD4FF95BE848F87.jpg/>
②  <img title=28-2.jpg alt=28-2.jpg src=https://huaweicloudobs.ahjxjy.cn/C2B250379AE3D8A1550AAAF32CC0DB61.jpg/>
③  <img title=28-3.jpg alt=28-3.jpg src=https://huaweicloudobs.ahjxjy.cn/5829BD6B44F9790F6ADD7D2844BF7738.jpg/>
④  <img title=28-4.jpg alt=28-4.jpg src=https://huaweicloudobs.ahjxjy.cn/1514CF2EA032D365D65EA07DD63A002A.jpg/>
【单选题】 某等节奏的施工参数如下:M=5,N=3,t=3d,∑Z=3d,∑C=3d,则Tp=()。
①  18d
②  19d
③  20d
④  21d
【判断题】 普通混凝土的强度等级是根据3天和28天的抗压、抗折强度确定的。
①  正确
②  错误
【判断题】 制作3D旋转光环时需要打开3D开关,把文字层设置为3D层( )。
①  正确
②  错误
【单选题】 <img title=24-D.jpg alt=24-D.jpg src=https://huaweicloudobs.ahjxjy.cn/3026A4060D7FCB5D7D7D48830AB988FA.jpg/>
①  <img title=24-1.jpg alt=24-1.jpg src=https://huaweicloudobs.ahjxjy.cn/C664BD209BCCB1BEB0EE5DF8AA027C31.jpg/>
②  <img title=24-2.jpg alt=24-2.jpg src=https://huaweicloudobs.ahjxjy.cn/6704F6BA7EFFE8B14743C6C644B8E802.jpg/>
③  <img title=24-3.jpg alt=24-3.jpg src=https://huaweicloudobs.ahjxjy.cn/3A9FE5DE81F85E17DC65B99B93EE02FC.jpg/>
④  <img title=24-4.jpg alt=24-4.jpg src=https://huaweicloudobs.ahjxjy.cn/BE029C8CB44C7868D7425BBD68795619.jpg/>
【单选题】 已知X与Y相互独立,且D(X)=3,D(Y)=4,则D(2X-3Y)= ( )
①  -24
②  12
③  -6
④  48
随机题目
【单选题】 He cannot be tired _______ he has walked only half a mile.
①  since
②  whether
③  when
④  as long as
【单选题】 The idea of winning the eyes of the people around ____ powerfully to some youngsters, so they are eagerly identifying themselves.
①  defy
②  expel
③  attract
④  appeals
【单选题】 The top of the Great Wall is _______ for five horses to go side by side.
①  wide
②  wide enough
③  enough wide
④  so wide
【单选题】 Charles regretted ______ the TV set last year. The price has now come down.
①  buying
②  to buy
③  of
④  from
【单选题】 I didn’t mean to do that. Please forgive me.____________
①  Not too bad.
②  Never mind.
③  It’s a pleasure.
④  Thank you.
【单选题】 No sooner _______ than they began to work.
①  they had arrived
②  they would arrive
③  had they arrived
④  would they arrive
【单选题】 Louis was asked to ___ the man who stole her purse.
①  confirm
②  recognize
③  claim
④  identify
【单选题】 For thousands of years man dreamed  () seemed impossible dreams about flying.
①  what
②  that
③  which
④  why
【单选题】 ___________ priorities
①  make
②  set
③  establish
④  identify
【单选题】 _______ these honours he received a sum of money.
①  Besides
②  Outside
③  But
④  Except