2021年上海材料员等级考试题.docx

上海材料员等级考试题
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、单项选择题（共 25 题，每题 2 分，每题备选项中，只有 1 个事最符合题意）
1、砂筛分试验应采__进行试验，并以其试验结果算术平均值作为测定值。
A．三个试样
B．四个试样
C．二个试样
D．五个试样
2、下列含有调整室内湿度功效材料为__。
A．石膏
B．石灰
C．膨胀水泥
D．水玻璃
3、水泥浆在混凝土材料中，硬化前和硬化后是起__作用。
A．胶结
B．润滑和胶结
C．填充
D．润滑和填充
4、木质素磺酸盐类缓凝剂掺量应占水泥重量__。
A．～
B．～
C．～
D．～
5、托运部门在提出索赔时，应向运输部门提出货运统计、货物运单、赔偿要求书和其它证件。从运输部门交给货运统计次日起最多不超出
__，逾期提出索赔，运输部门可不予受理。
A．180d
B．200d
C．240d
D．260d
6、防水砂浆中，水泥和砂百分比通常不宜大于__，～，稠度不应大于80mm。
A．1:
B．1:
C．1:
D．1:
7、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’ or ’rarely’ 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 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