【单选题】钢筋的工程量计算中,图示钢筋长度为( )
C.
构件尺寸-保护层厚度+弯起钢筋增加长度+两端弯钩长度+图纸注明的搭接长度
D.
构件尺寸-保护层厚度+弯起钢筋增加长度+图纸注明的搭接长度
【简答题】A.wrong B.right C.correct D.incorrect
【单选题】Which of the following is incorrect ? Evaluation of forecast accuracy
A.
is important since the production of forecasts is costly to the firm.
B.
requires the use of symmetric error cost functions.
C.
is important since it may reduce business losses from inaccurate forecasts.
D.
is done by averaging forecast errors
E.
both B and D are incorrect
F.
both A and B are incorrect
【单选题】弯起钢筋下料长度所采用的公式是( )。
A.
弯起钢筋下料长度=构件长度一保护层厚度+弯钩增加量
B.
弯起钢筋下料长度=直段长度一保护层厚度+斜段长度一弯曲量度差
C.
弯起钢筋下料长度=箍筋周长十箍筋弯钩增加长度
D.
弯起钢筋下料长度=直段长度十斜段长度一弯曲量度差十弯钩增加量
【单选题】The statement is ______ incorrect.
【简答题】A.illegal B.unfair C.unreasonable D.incorrect
【单选题】婴儿男,8个月。体格、智能发育正常,此期小儿心理发展的特征是
【单选题】弯钢筋长度计算=构件长度保护层厚度+弯钩长度+搭接长度半圆弯钩长度= ()/个弯钩