根据《普通混凝土配合比设计规程》(JGJ55—2011),混凝土的试配强度如何确定?

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问题:

根据《普通混凝土配合比设计规程》(JGJ55—2011),混凝土的试配强度如何确定?

考点:土建知识竞赛土建知识竞赛题库
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下列步骤中不属于系统分析阶段的是

A.编写程序

B.可行性研究

C.系统初步调查

D.系统详细设计

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伽利略等科学家曾做过下图所示的实验,即研究小车在不同平面上的运动情况。

(1)实验时让小车从斜面同一高处滑下,目的是使小车到达平面时具有相同的___________________

(2)在分析现象时,一般人常注意的是:小车在毛巾表面运动时所受的__________大,所以运动距离短。而科学家却注意到:小车在较平滑的木板上运动的距离更远,并由此推想,运动着的物体如果不受外力作用,将____________________,著名的牛顿第一定律就是在这样的基础上总结和推理得到的。

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果葡糖浆中的主要成分是哪两种糖().

A.葡萄糖

B.饴糖

C.果糖

D.麦芽糖

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Regardless of their political affiliation, in all countries women must overcome a host of stumbling blocks that limit their political careers. "Most obstacles to progress consist of (1) of various kinds," says the Inter-Parliamentary Union (IPU), a Geneva-based organization (2) 139 parliaments, including the lack of time, training, information, self-confidence, money, support, motivation, women’s networks and solidarity between women.

In every culture, prejudice and stereotypes (3) hard. The belief still holds (4) that women belong in the kitchen and (5) the children, not at election (6) or in the Speaker’s chair. The media often reinforce traditional images of women, who, upon entering politics, also bear the brunt (正面冲击) of verbal and physical (7) .

In impoverished (贫穷的) countries (8) by civil conflicts and deteriorating economic and social conditions, women are (9) by the tasks of managing everyday life and looking after their families.

The IPU stresses the general lack of child-care facilities—often (10) a privileged few—the (11) of political parties to change the times and running of meetings and the weak backing women receive from their families. That support, which is (12) as well as financial, is (13) vital because women have internalized (14) images of themselves since the (15) of time and often suffer from low self-confidence.

Another obstacle is the lack of financial resources, especially as election campaigns become increasingly expensive. (16) , women encounter more or less open machismo (男子汉的高傲) in the (17) of closed political circles (18) entry to the "second sex. " Lastly, they (19) the lack of solidarity between women, (20) by the fact that the number of available positions is limited.

11()

A.endeavor

B.persistence

C.stubbornness

D.reluctance

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合同的权利义务终止后,当事人应当遵循()原则,根据交易习惯履行通知、协助、保密等义务。

A.全面履行

B.诚实信用

C.协助履行

D.实际履行

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