皮皮学，免费搜题
登录
搜题
【单选题】
以下_____缺陷可用渗透探伤法发现。
A.
开口于表面的裂纹
B.
近表面裂纹
C.
内部夹杂
D.
层间未熔合
拍照语音搜题，微信中搜索"皮皮学"使用
参考答案：
参考解析：
知识点：
.
..
皮皮学刷刷变学霸
举一反三
【单选题】With the help of high technology, more and more new substances ______ in the past 10 years.
A.
discovered
B.
have discovered
C.
had been discovered
D.
have been discovered
查看完整题目与答案
【判断题】不可感知性是指服务与实体商品相比较,服务的特质及组成服务的元素,许多情况下都是无形无质的,让人不能触摸或凭视觉感到其存在。
A.
正确
B.
错误
查看完整题目与答案
【单选题】A man escaped from the prison last night. It was a long time __________ the guards discovered what had happened.
A.
before
B.
until
C.
since
D.
when
查看完整题目与答案
【单选题】This is an exciting area of study, and one ______ which new applications are being discovered almost daily.
A.
from
B.
by
C.
in
D.
through
查看完整题目与答案
【简答题】Scientists at Royal Holloway, University of London  and Queen Mary, University of London have discovered that bees learn to fly the shortest possible route between flowers even if they discover the fl...
查看完整题目与答案
【简答题】采用非接触式光学扫描仪进行采集数据前,物体需要做哪些前处理?
查看完整题目与答案
【判断题】重量分析法直接用分析天平称量获得分析结果,不需要基准物质或标准试样作为参比,分析结果的准确度较高,适于微量组分的测定。
A.
正确
B.
错误
查看完整题目与答案
【单选题】If Newton lived today, he would be surprised by what _______ in science and technology.
A.
had discovered
B.
had been discovered
C.
has discovered
D.
has been discovered
查看完整题目与答案
【判断题】转学、转专业的学生应按转入专业的培养方案补修未修课程,并按规定缴纳学费。A. 正确 B. 不正确
A.
正确
B.
错误
查看完整题目与答案
【简答题】C语言中一个单精度浮点型数据占（ ）个字节。
查看完整题目与答案
相关题目：
【单选题】With the help of high technology, more and more new substances ______ in the past 10 years.
A.
discovered
B.
have discovered
C.
had been discovered
D.
have been discovered
查看完整题目与答案
【判断题】不可感知性是指服务与实体商品相比较,服务的特质及组成服务的元素,许多情况下都是无形无质的,让人不能触摸或凭视觉感到其存在。
A.
正确
B.
错误
查看完整题目与答案
【单选题】A man escaped from the prison last night. It was a long time __________ the guards discovered what had happened.
A.
before
B.
until
C.
since
D.
when
查看完整题目与答案
【单选题】This is an exciting area of study, and one ______ which new applications are being discovered almost daily.
A.
from
B.
by
C.
in
D.
through
查看完整题目与答案
【简答题】Scientists at Royal Holloway, University of London  and Queen Mary, University of London have discovered that bees learn to fly the shortest possible route between flowers even if they discover the fl...
查看完整题目与答案
【简答题】采用非接触式光学扫描仪进行采集数据前,物体需要做哪些前处理?
查看完整题目与答案
【判断题】重量分析法直接用分析天平称量获得分析结果,不需要基准物质或标准试样作为参比,分析结果的准确度较高,适于微量组分的测定。
A.
正确
B.
错误
查看完整题目与答案
【单选题】If Newton lived today, he would be surprised by what _______ in science and technology.
A.
had discovered
B.
had been discovered
C.
has discovered
D.
has been discovered
查看完整题目与答案
【判断题】转学、转专业的学生应按转入专业的培养方案补修未修课程,并按规定缴纳学费。A. 正确 B. 不正确
A.
正确
B.
错误
查看完整题目与答案
【简答题】C语言中一个单精度浮点型数据占（ ）个字节。
查看完整题目与答案