用力法求解静定刚架在荷载和支座移动作用下的内力,只需知道各杆刚度的相对值。
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刮拭双上肢可防治全身疾患如肢体麻木、关节疼痛、头痛眩晕、高血压、心脏病等。
A. 正确
B. 错误
在具有火灾、爆炸危险的场所进行电焊、气焊等明火作业的,应当使用()的作业人员,经单位消防安全管理人书面批准,并采取专人监督等现场消防安全监护措施后,方可作业
What is true about joining tables through an equijoin? ()
A. You can join a maximum of two tables through an equijoin.
B. You can join a maximum of two columns through an equijoin.
C. You specify an equijoin condition in the SELECT or FROM clauses of a SELECT statement.
D. To join two tables through an equijoin, the columns in the join condition must be primary key and foreign key columns.
E. You can join n tables (all having single column primary keys) in a SQL statement by specifying a minimum of n-1 join conditions.
不是目前我国个人住房贷款主要形式的为()。
A. 公积金贷款
B. 住房抵押贷款
C. 住房储蓄贷款
D. 单位住房津贴贷款