主页
学科
搜索
账户
常见问题
当前学科:采煤机司机考试
题目:
判断题
截割部传动系统多数都设置一锥齿轮,以适应电动机纵向布置,改变传动方向的需要。
A . 正确
B . 错误
答案:
<查看本题扣1积分>
查看答案
答案不对?请尝试站内搜索
推荐知识点:
诊断衣原体感染可通过在感染细胞内直接查找()
系统工程师小李希望查询到中国计算机职业技术资格网(http://www.rkb.gov,cn)的web服务器的IP地址,他在一台连接到互联网的工作站上用命令行方式进行查询,下列命令中的()无法让小李查询到该网站的IP地址。
哪一项不是微观经济学考察的问题?()
A Bridge for Squirrels San Francisco has its cable cars. Seattle has its Space Needle. And, Longview has its squirrel bridge. The bridge, which has attracted international attention, is now a local landmark. The Nutty Narrows Bridge was built in 1963 by a local builder, Amos Peters, to give squirrels a way to cross the busy road without getting flattened by passing cars. The original bridge was built over Olympia Way on the west edge of the library grounds. Before the bridge was built, squirrels had to avoid traffic to and from the Park Plaza office building where office staff put out a nutty feast for the squirrels. Many times, Peters and others who worked in and near Park Plaza witnessed squirrels being run over. One day Peters found a dead squirrel with a nut still in its mouth, and that day's coffee break discussion turned into squirrel safety. The group of businessmen cooked up the squirrel bridge idea and formed a committee to ask the blessing of the City Council (市政会).The Council approved, and Councilwoman Bess LaRiviere jokingly named the bridge "Nutty Narrows". After architects designed the bridge, Amos Peters and Bill Hutch started construction. They built the 60-foot bridge from aluminum and lengths of fire hose (消防水带). It cost 1000. It didn't take long before reports of squirrels using the bridge started. Squirrels were even seen guiding their young and teaching them the ropes. The story was picked up by the media, and Nutty Narrows became known in newspapers all over the world. In 1983, after 20 years of use, Peters took down the worn-out bridge. Repairs were made and crosspieces were replaced. The faded sign was repainted and in July 1983, hundreds of animal lovers attended the completion ceremony of the new bridge. Peters died in 1984 ,and a ten-foot wooden squirrel sculpture was placed near the bridge in memory of its builder and his devotion to the project. What can we learn about Amos Peters?()
说出四种含有多于35%粗蛋白的常用饲料。
“久婴笃疾”中的“婴”意思是()
属于环境卫生学的主要研究方法的是()
切丝机主传动机构磨损后影响传动的()关系,使铜排链送料的速度与刀辊转速不匹配。
下列植物中,常用扦插繁殖的是()
建筑用轻钢龙骨断面一般有()。