皮皮学,免费搜题
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【简答题】
Career sites Career sites are a common tool for job-hunting. Because of the abundance (大量) of listings on the Internet, hunting for a job via the Internet is a particularly good strategy for first-time job seekers. In terms of management, job search sites can be mainly divided into three categories: (1) education career sites, which are managed by education organizations such as colleges and universities and mainly serve college graduates( 大学毕业生 ) ; (2) social career sites, which are offered by either for-profit or non-profit organizations, mainly employment agencies; (3) government career sites, which are managed by personnel bodies( 人事部门 ) of local governments. Most career sites have a search engine( 搜索引擎 ) , so one can search for a job by just typing some key words such as the name of the desired position in the search box( 搜索框 ) , and then clicking the search buttons with the mouse. For instance, if you want to explore (探索) the Internet to find some employment information, say, wanting ads( 招聘广告 ) of a salesperson in you can just enter “salesperson” in the search box of “Keywords”, and enter “Guangzhou” in the search box of “Location” and then click the button of “Search Jobs” or “Find Jobs”. Now, start your job search by accessing (进入) the following major online job sites. http://www.51job.com http:// www.china-hr.com http://www.zhaopin.com http://www.lietou.com http://www.yingjiesheng.com Though there is no guarantee of getting a job through the Internet, the advantage of using the Web is that it’s fast and literally (确实) has millions of listings.
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举一反三
【单选题】执行以下程序段后,输出结果是______。
A.
NO
B.
YES
C.
YESNO
D.
提示运行错误
【单选题】当量燃空比是实际燃空比与化学计量燃空比的比值,是( )的倒数来计算。
A.
理论空燃比
B.
实际空燃比
C.
过量空气系数
D.
燃烧系数
【单选题】suspicious / səs’piʃəs/
A.
vt.医治;消除 n.治愈
B.
n.安全,安全感
C.
n.塑像,雕像,铸像
D.
adj.怀疑的;可疑的
【单选题】stroke/ strəuk/
A.
n.打,击;鸣声;中风
B.
n.脚底,鞋底,袜底
C.
n.塑像,雕像,铸像
D.
n.原料;库存品;股本
【单选题】suck/ sΛk/
A.
n.舞台;戏剧;阶段
B.
n.生物,动物,家畜
C.
n.塑像,雕像,铸像
D.
vt.吸,吮,啜;吸收
【单选题】以下关于c2检验的自由度的说法,正确的是
A.
拟合优度检验时, v-n-2 (n 为观察频数的个数 )
B.
对一个 3x4 表进行检验时, v=11
C.
对四格表检验时, v=4
D.
若 c 2 0.05 , v > c 2 0.05, η ,则 v> η
【多选题】对于螺旋传动来说,其传动效率η与螺旋升角ψ及当量摩擦角ρ V 有关,下述说法中正确的是(    )。
A.
ψ越大,η越高    
B.
ψ越小,ψ越高
C.
ρ V 越大,ψ越高    
D.
ρ V 越大,η越低
【单选题】5-1对于螺旋传动来说,其传动效率η与螺纹升角ψ的及当量摩擦角ρv有关,下述说 法中正确的是()
A.
ψ越大,η越高
B.
ψ 越小、 η 越高
C.
ρv越大,η越高
D.
ρv越 小 ,η越低
【多选题】对于螺旋传动来说,其传动效率η与螺纹升角φ及当量摩擦角ρ v 有关,下述说法中正确的是 ( ) 。
A.
pv 越大,η越高
B.
pv 越大,η越低
C.
φ越大,η越高
D.
φ越小,η越高
【单选题】以下关于χ 2 检验的自由度的说法,正确的是()
A.
拟合优度检验时,v-n-2(n为观察频数的个数)
B.
对一个3×4表进行检验时,ν=11
C.
对四格表检验时,ν=4
D.
若 ,则ν>η
E.
均不正确
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