进一步检查宜首选 A．腹部B超 B．妇科检查 C．X线钡灌肠 D．回结肠镜检查 E．

省内独立电网与省及省以上大电网的关系体现在（）。

A.枯水季节从大电网购入电力、丰水季节将部分自用有余的电力上网

B.独立电网从大电网购电的价格一般执行国家制定的目录电价

C.省内独立电网之间的互供电价，一般由省级政府价格主管部门核定

D.独立电网上网的电价一般由省级政府价格主管部门核定

离心泵型号65YD－85X5中的85代表（）。

A.叶轮级数

B.单级扬程

C.进口直径

D.出口直径

Third-generation mobile phones, known as 3G, are the next big step for the telecom industry. Data speed in 3G networks is much quicker than that in present technology. This means users can have high-speed Internet access and enjoy video and CD-quality music on their phones.

"Mobile data is not a dream; it’s not an option but a requirement," said Len Lauer, head of a US communications company, Sprint PCS, at a 3G conference in Bangkok earlier this month.

With 3G, you can forget about text messages telling you yesterday’s news; a 3G phone can receive video news programs, updated four times a day. Internet access will also be much quicker, making it easier to surf the Web on your phone than on your computer at home.

Don’t worry about getting lost. 3G phones offer map services so you can find a new restaurant just by pressing a few keys on your handset.

However, the most impressive part of 3G technology is video calling. With live two-way video communication, you can have face-to-face talks with friends and family on your mobile phone.

Many European countries have already launched the service. In May 2000 the US Government issued five license to run 3G wireless services, while the first 3G phones arrived in Italy in March this year.

International telecom companies can’t wait to sell 3G in China, the world’s largest mobile telecommunications market. But they will have to be patient. At the moment, China is busy testing its 3G-based technologies, networks and services. This will be followed by a trial period before the phones can finally hit the shops.

"We need to create a pool of 3G customers before the large-scale commercial launch of the service," said Fan Yunjun, marketing manager for Beijing Mobile. "We expect that the 3G licenses will be issued late next year.

第（1）空应填（）

以下关于销售预测的说明中，正确的是（）？

A.在销售预测中，未勾选“纳入生产计划”，则该销售预测值作为与实际值的考量

B.销售预测是企业必走的流程

C.在销售预测中，勾选“纳入生产计划”，则该销售预测可作为批次需求计划的来源排程生产

D.在销售预测中，预测编号不可手动输入

下列选项中，用人单位可以单方解除合同的情形包括（）。

A.劳动者因为犯盗窃罪，被依法追究刑事责任

B.劳动者在试用期内迟到、早退，不符合录用条件

C.劳动者因工负伤，成为残疾人

D.用人单位经济性裁员

E.劳动者同时与其他用人单位签订了劳动合同且不愿改正