下列指标中属于WCDMA无线网络性能指标的有()。
A、Iur口无线链路建立成功率
B、CAMEL用户接通率
C、寻呼拥塞率
D、小区码资源占用率
参考答案:A, C, D
Japan says its prime minister promised to provide the world with "maximum transparency" about ____ accident at the Fukushima nuclear power plant during _____ telephone call.
A.the; a
B.the; the
C.an; the
D.an; a
一项工作,甲单独做10天完成,乙单独做6天完成.若先由甲单独做2天,剩下的部分由甲、乙合作完成.求完成此项工作甲一共做了多少天?