下面有关硬质或半硬质绝热层施工的说法正确的是( )。 A．包扎_爱下问搜题

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问题多项选择题

下面有关硬质或半硬质绝热层施工的说法正确的是( )。

A．包扎二合管时应左右合拢；二合管应互相交错1/2

B．弯头的三合管结构最好为定型的，也可以用二合管加工配砌

C．用膨胀珍珠岩及泡沫水泥管壳时可用C52.5硅酸盐水泥为胶粘剂，二合管缝隙以挤出胶粘剂为饱满

D．铝箔玻璃棉管壳保温材料，施工方便，只需要在接合缝处贴合铝箔胶粘带即可，外包六角铁丝网

E．用硬质聚苯乙烯管壳或聚氨酯泡沫塑料管壳时黏结剂宜用202胶，配胶按质量比5:1，混合后搅均匀使用

答案

参考答案：A,B,C,E

判断题

下坡路制动失效后，驾驶人应立即寻找并冲入紧急避险车道；停车后，拉紧驻车制动器，以防溜动发生二次险情。

单项选择题

Which of the following is NOT a key characteristic of the Global Investment Performance Standards (GIPS) GIPS :（）

A. represent the highest performance measurement and presentation practice worldwide.

B. are ethical standards for investment performance presentation to ensure fair representation and full disclosure of an investment firm’s performance history.

C. require managers to include all actual fee - paying and non - fee - paying discretionary portfolios in composites defined according to similar strategy and/or investment objective.