以下接口中属于SS7接口的为()。 A.Gs B.Ga C.Gr D.Gd

题型:多项选择题

问题:

以下接口中属于SS7接口的为()。

A.Gs

B.Ga

C.Gr

D.Gd

考点:通信工程师GPRS网络规划优化GPRS网络规划优化题库
题型:多项选择题

在进行观察质壁分离及质壁分离复原的实验过程中,有几种实验材料供选择,你认为分离现象明显的细胞是[ ]

A.具有紫色液泡的洋葱表皮细胞

B.透明的洋葱表皮细胞

C.口腔上皮细胞

D.洋葱根尖中既小且方的细胞

题型:多项选择题

How to protect children Web fans from unsuitable material on-line while encouraging them to use the Internet has long been discussed in the US.

For some parents, the Internet can seem like a jungle, filled with danger for their children. But jungles contain wonders as well as dangers and with good guides, some education, and a few precautions, the wilds of the Internet can be safely navigated. "Kids have to be on-line. If we tell our kids they can’t have access to the Internet, we’re cutting them off from their future, " said an expert.

Most kids have started to use search engines. Many of them are great for finding tons of interesting Internet sites, and they can also locate places where you might not want your kids to go. There are search engines designed just for kids. A certain software contains only sites that have been selected as safe. The most popular way to limit access would be to use what is known as a "content screener". But this can’t be wholly reliable, and the best thing parents can do is to talk to their kids and let them know what is OK or not OK to see or do on the Internet. Another way is that mum or dad is nearby when the child is surfing the Internet.

A few other tips

·Don’t put the PC in a child’s room but keep it in an area where mum or dad can keep an eye on things. That also makes the Internet more of a family activity.

·Ask your child what he or she has been doing and about any friends they make on-line.

·Tell your child not to give on-line strangers personal information, especially like address and phone number.

·And tell your children never to talk to anyone they meet on-line over the phone, send them anything, accept anything from them or agree to meet with them unless you go along.

The passage is mainly about the subject of()

A. American children going on-line

B. Internet in America

C. appreciating Internet

D. opposing children’s on-line

题型:多项选择题

罗斯福新政的措施主要“新”在[ ]

A.积极推行“以工代赈”

B.用改良的方法克服危机

C.采用国有化的形式

D.采用国家干预经济的办法摆脱经济危机

题型:多项选择题

创业()是指因创业企业成长带来的风险。

A.管理风险

B.财务风险

C.成长风险

D.环境风险

题型:多项选择题

某家饼干生产厂生产苏打饼干,当苏打饼干从隧道式烤炉中随着链条式传送带送出时,为了缩短苏打饼干的生产周期,该厂家用流速为10m/s的强风快速冷却产品。试分析一下该企业采用强风来冷却苏打饼干这一做法是否正确,并解释其原因。

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