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【多选题】
当桩的中心距大于4倍桩的直径或边长时,预制桩的沉桩顺序可采用:A.
逐排打设
B.
自中部向边沿打设
C.
自边沿向中央打设
D.
分段打设
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【简答题】创建学生类Student。 其字段有id、name、、specialty、grade,分别代表主键,姓名、性别、专业、年级。
【单选题】During the Olympic Games, people from all over the world come together in peace and friendship. The first Olympic Games that we have【21】of were in Greece in 776 B.C. The games lasted one day. The only...
A.
books
B.
history
C.
records
D.
publications
【简答题】Chris is not a traditional explorer（探险者）- he usually works in an office for a large organization. Yet his job can sometimes be just as exciting and erous as being an explorer. Chris works for MSF,...
【简答题】对于给定的某离心泵装置,当水泵转速提高时,会使 水泵流量 和轴功率()。 (注:填“ 变大 ” 、“变小”或“不变” )
【简答题】阅读短文，回答问题。 On March 27, Saturday evening, people all over the world once again turned their lights off for an hour to help fight against global climate changes and give the world a brighter future. Fo...
【单选题】During the Olympic Games, people from all over the world come together in peace and friendship. The first Olympic Games that we have【21】of were in Greece in 776 B.C. The games lasted one day. The only...
A.
books
B.
history
C.
records
D.
publications
【简答题】关系Student(Sno,Sname,S,Sage,Sdept),请写出以下SQL语句。 (1)创建学生表Student,各字段的类型及长度应根据实际情况确定,其中学号取值不能为空且为主键。 (2)检索信息系(IS)和计算机系(CS)的学生的姓名和性别。
【简答题】When do you go to school? Maybe this is a very 26 thing for you. 27 for the students in Fujian Province, it’s a really big problem. As everyone 28 , the strong Typhoon(台风) in Fujian not only des...
【简答题】音乐的功能主要包括 功能、保健功能、 功能和实用功能。
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