荷载的类型中,可变作用是指在设计基准期内,其值随时间变化。以下属于可变作用的有()。 ["预加压力","严重腐蚀","起重机荷载","基础沉降","积灰荷载"]
public class Test { public static void main (String[]args) { String foo = args[1]; String bar = args[2]; String baz = args[3]; System.out.printIn(“baz = ” + baz); } } And the output: Baz = 2 Which command line invocation will produce the output?() [" Java Test 2222"," Java Test 1 2 3 4"," Java Test 4 2 4 2"," Java Test 4 3 2 1"]
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履约担保形式中,()是指当承包商违约时,其担保公司或保险公司用该项担保金去完成施工任务或者向发包人支付该项保证金。 ["违约金","保留金","履约担保书","银行履约保函"]
只有在LAC曲线的最低点上,LAC曲线才相切于相应的SAC曲线的最低点。
单元机组的主控制系统一般由哪两部分组成?各起何作用?