【判断题】力矩分配法计算荷载作用问题时,结点最初的不平衡力矩(约束力矩)仅仅是交于结点各杆端固端弯矩的代数和。
【判断题】力矩分配法计算荷载作用问题时 , 结点最初的不平衡力矩 ( 约束力矩 ) 仅是交于结点各杆端固端弯矩的代数和 .
【多选题】Which two statements are true regarding subqueries? ()
A.
A subquery can retrieve zero or more rows
B.
Only two subqueries can be placed atone level
C.
A subquery can be used only in SQL query statements
D.
A subquery can appear on either side of a comparison operator
E.
There is no limit on the number of subquery levels in the WHERE clause of a SELECT statement
【单选题】Which of the following statements is NOT true of the two ferry disasters?
C.
The exact number of deaths could be easily determined
D.
They sank somewhere near Dhaka
【判断题】力矩分配法计算荷载作用问题时 , 结点最初的不平衡力矩 ( 约束力矩 ) 仅是交于结点各杆端固端弯矩的代数和。
【判断题】力矩分配法计算荷载作用问题时,结点最初的不平衡力矩(约束力矩)仅是交于结点各杆端固端弯矩的代数和。
【单选题】35 Which of the following statements is NOT true of the two ferry disasters?
A.
They traveled during the April-May stormy season.
B.
They sank on April 21.
C.
The exact number of deaths could be easily determined.
D.
They sank somewhere near Dhaka.
【判断题】用IUPAC系统命名法命名化合物 是2,3-二甲基-2-乙基己烷;