| Within a large concrete room, cut out
of a mountain on a freezing-cold island just 1,000 kilometers from the North
Pole, could lie the future of humanity. The room is a vault (地下库) designed to hold around 2 million seeds, representing all known varieties of the world’s crops. It is being built to safeguard the world’s food supply against nuclear war, climate change, terrorism, rising sea levels, earthquakes and the collapse of electricity supplies. "If the worst came to the worst, this would allow the world to reconstruct agriculture on this planet," says Cary Fowler, director of the Global Crop Diversity Trust, an independent international organization promoting the project. The Norwegian (挪威的) government is planning to create the seed bank next year at the request of crop scientists. The $3 million vault will be built dee A. constructing tight airlocks B. maintaining high security C. keeping freezing temperatures D. storing large quantities of seeds [判断题]电动机运行时产生“咝咝”声一般是电动机风扇叶轮碰壳或有杂物造成的。低难度
A.正确 B.错误 [单选题]装卸( )货物应根据小型箱、托盘、集装袋（笼）等集装化货物装卸车、进出站需要，优先配置电瓶叉车、电动液压搬运车等装卸机具。
A.笨重 B.零散 C.成件货物 D.集装箱 [单项选择]胰岛素瘤的典型临床特点是
A. Zonllinger-Ellison综合征 B. Charcot综合征 C. Whipple三联症 D. 类癌综合征 E. 高血糖综合征 [单项选择]固定式工业护栏的技术要求（）。
A. 1000mm B. 1100mm C. 1050mm D. 900mm [名词解释]流动人口
[单选题]运维班应根据变电站巡视检查( )和周期，制定智能巡检机器人巡视任务和巡视周期。
A.项目 B.内容 C.时间 [多选题]门窗框与洞口缝隙可采用( )填塞密实。
A..保温、防潮且无腐蚀性的轻质材料 B..在满足建筑节能要求时,亦可使用防水砂浆 C..聚氨酯泡沫填缝胶 D..海砂拌制的砂浆 E..细石混凝土 [单选题] 电气设备全部或部分停电的作业,应在作业地点悬挂( )的安全标志牌。
A. 禁止出入 B. 有人工作 C. 在此工作 D. 高压危险 我来回答: 提交
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