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参考答案:
解析:
被积函数中有,设x=asint,计算积分∫f[φ(t)]φ’(t)dt,最后一定要注意将t用反函数φ-1(x)换元.
关于录用决策,下列陈述正确的是()。
A.用人单位一般将错误的人员拒绝看得比错误接受更严重
B.当人事部门与用人部门在人选问题上意见冲突时,以人事部门的意见为准
C.尽可能地选择具有与组织文化相吻合的个性特点的求职者,即使他们缺乏相应的知识背景和工作经验
D.录用决策是最终的用人决策
A local-area network (LAN) is a communications network that (125) a variety of devices and provides a (126) for information exchange among those devices. The scope of the LAN is small typically a single building or a cluster (丛) of buildings. The LAN is usually owned by the same organization that owns the (127) devices. The internal data rate of LAN is at least several Mb/s. The basic of LAN communication is broadcasting. At each station, there is a transmitter/receiver that communicates over a (128) shared, By other stations. A transmission from any one station is (129) to and received by all other stations.
A.broadcast
B.cable
C.control
D.interconnects
E.internet
F.meander
G.means
H.medium
I.modem
J.output switch relay