北京材料员岗位知识与专业技能考试试卷
本卷共分为1大题50小题，作答时间为180分钟，总分100分，60分及格。 一、单项选取题（共 25 题，每题 2 分，每题备选项中，只有 1 个事最符合题意）
1、凡孔洞率不不大于等于25%砖为__。 A．烧结普通砖 B．烧结多孔砖 C．烧结空心砖 D．粉煤灰砖
2、级别为S105矿渣粉，比表面积应不不大于等于__。 A．300m2/kg B．100m2/kg C．500m2/kg D．700m2/kg
3、下列选项中，不属于周转材料按使用对象分类是__。 A．混凝土工程用周转材料 B．构造及装修工程用周转材料 C．安全防护用周转材料 D．钢制品
4、下列选项中，不属于木材缺陷是__。 A．虫眼 B．腐朽 C．髓心 D．斜纹
5、石灰水化过程为__。
A．放热反映 B．吸热反映 C．体积收缩反映 D．既不吸热也不放热
6、下列选项中，属于严重风化区地区是__。 A．北京市 B．河南省 C．江苏省 D．安徽省
7、砌筑砂浆中块状生石灰熟化成石灰膏时，应用孔洞尺寸不不不大于__网过滤。 A．3mm×3mm B．4mm×4mm C．5mm×5mm D．6mm×6mm
8、下列选项中，不会影响混凝土碳化是__。 A．水泥品种 B．砂率 C．水灰比 D．环境条件
9、表达塑性混凝土流动性指标为__。 A．坍落度 B．分层度 C．沉入度 D．维勃稠度
10、The cellphone，a device we have lived with for more than a decade，offers a good
example of a popular technology’s unforeseen side effects. More than one billion are (1) around the world，and when asked，their (2) say they love their phones for the safety and convenience (3) provide. People also report that they are (4) in their use of their phones. One opinion survey (5) that "98 percent of Americans say they move away from (6) when talking on a wireless phone in public"；(7) "86 percent say they ’never&rsquo；or ’rarely&rsquo；speak (8) wireless phones"；when conducting (9) with clerks or bank tellers. Clearly，there exists a (10) between our reported cell phone behavior and our actual behavior.Cellphone users--that is to say，most of us--are (11) instigators and victims of this form of conversational panhandling，and it (12) a cumulatively negative effect on social space. As the sociologist Erving Gotfman observed in another (13) ，there is something deeply disturbing about people who are"；(14) contact"；in social situations because they are blatantly refusing to (15) to the norms of their immediate environment. Placing a cellphone call in public instantly transforms the strangers around you (16) unwilling listeners who must cede to your use of the public (17) ，a decidedly undemocratic effect for so democratic a technology. Listeners don’t always passively (18) this situation：in recent years，people have been pepper-sprayed in movie theaters，(19) from concert hails and deliberately rammed with cars as a result of (20) behavior on their cellphones. 13（） A．and that B．as for C．whereas D．on the contrary
11、木钙掺量0.25%，“0.25%”是以__为基准量计算。 A．用水量
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