皮皮学，免费搜题
登录
搜题
【判断题】
求解平衡问题时,未知力结果如为负值,则说明该力的实际方向与假设方向相反。A.
正确
B.
错误
手机使用
分享
复制链接
新浪微博
分享QQ
微信扫一扫
反馈参考答案：
举一反三
【单选题】资料表明,肺癌的一个最重要致病因素是
A.
长期接触放射性物质
B.
长期接 触致癌物质
C.
长期吸人污染的空气和烟尘
D.
长期大量吸烟
E.
长期接触石棉、铬、镍等物质
【单选题】资料表明,肺癌的一个最重要致病因素是
A.
长期接触放射性物质
B.
长期接触致癌物质
C.
长期吸入污染的空气和烟尘
D.
长期大量吸纸烟
E.
长期接触石棉、铬、镍等物质
【单选题】According to Paragraph 5, measuring the conductivity of fluid in rock may not be a reliable earthquake predictor, because ______.
A.
other factors may account for changes in conductivity
B.
rock may be saturated with fluid
C.
these changes can be measured
D.
the conductivity of crustal rock is inherently variable
【单选题】资料表明，肺癌的一个最重要致病因素是
A.
长期接触放射性物质
B.
长期接触致癌物质
C.
长期吸入污染的空气和烟尘
D.
长期大量吸烟
E.
长期接触石棉、铬、镍等物质
【单选题】资料表明,肺癌的一个最重要致病因素是
A.
长期吸入污染的空气和烟尘
B.
长期接触致癌物质
C.
长期接触放射性物质
D.
长期大量吸烟
E.
长期接触石棉、铬、镍等物质
【单选题】Several students have formed a study group for their communication class. Although some students are communication majors with high grades, the member who has the most influence on the group is a fun-...
A.
coercive
B.
expert
C.
referent
D.
Information
【单选题】Several students have formed a study group for their communication class. Although some students are communication majors with high grades, the member who has the most influence on the group is a fun-...
A.
coercive
B.
expert
C.
referent
D.
information
【简答题】简述工程项目实施建设监理的程序。
【简答题】One A blue-collar worker is a member of the working class who performs manual labor. Blue-collar work may involve skilled or unskilled, manufacturing, mining, construction, mechanical, maintenance, te...
【简答题】A blue-collar worker is a member of the working class who performs manual labor. Blue-collar work may involve skilled or unskilled, manufacturing, mining, construction, mechanical, maintenance, techni...
相关题目：
参考解析：
知识点：
题目纠错 0
发布
