主页
学科
搜索
账户
常见问题
当前学科:无线通信
题目:
单选
CDMA20001x的前向数据传输速率为()。
A . 14.4kBps
B . 64kBps
C . 153.6kBps
D . 2.4MBps
答案:
<查看本题扣1积分>
查看答案
答案不对?请尝试站内搜索
推荐知识点:
肥厚性瘢痕压力治疗要求每天必须持续加压包扎10个小时以上,坚持6个月至3年。()
某冶金产品中有钛、钒、碳、硅、锰五种主要元素,要找出最佳元素的配比需进行多次试验。为经济高效地制定试验方案,以下()方法适宜采用。
根据以下资料,回答题。The social sciences are flourishing.As of 2005,there were almost half a million professional social scientists from all fields in the world, working both inside and outside academia. According to the World Social Science Report 2010,the number of social-science students worldwide has swollen by about 11% every year since 2000.Yet this enormous resource in not contributing enough to today’s global challenges including climate change, security,sustainable development and health.(41)______Humanity has the necessary agro-technological tools to eradicate hunger , from genetically engineered crops to arificial fertilizers . Here , too, the problems are social: the organization and distribution of food, wealth and prosperity.(42)____This is a shame—the community should be grasping the opportunity to raise its influence in the real world. To paraphrase the great social scientist Joseph Schumpeter:there is no radical innovation without creative destruction .Today ,the social sciences are largely focused on disciplinary problems and internal scholarly debates,rather than on topics with external impact.Analyses reveal that the number of papers including the keywords “environmental changed” or “climate change” have increased rapidly since 2004,(43)____ When social scientists do tackle practical issues ,their scope is often local:Belgium is interested mainly in the effects of poverty on Belgium for example .And whether the community’s work contributes much to an overall accumulation of knowledge is doubtful. The problem is not necessarily the amount of available funding (44)____this is an adequate amount so long as it is aimed in the right direction. Social scientists who complain about a lack of funding should not expect more in today’s economic climate.The trick is to direct these funds better.The European Union Framework funding programs have long had a category specifically targeted at social scientists.This year,it was proposed that system be changed:Horizon 2020,a new program to be enacted in 2014,would not have such a category ,This has resulted in protests from social scientists.But the intention is not to neglect social science ; rather ,the complete opposite.(45)____That should createmore collaborative endeavors and help to develop projects aimed directly at solving global problems. 请在第____处填上正确选项。
HIV的传播途径有( )
地铁员工旷工有哪些处理规定?
某企业第1年年初向银行借款500万元,年利率为7%,银行规定每季度计息一次。若企业向银行所借本金与利息均在第4年年末一次支付,则支付额为()万元。
当前,在计算机应用方面已进入以并行处理技术为特征的时代。
活塞要承受瞬间高温和燃油燃烧的爆发压力,因此它的强度要高、导热性要好,()要小。
下列哪几项是传导性聋常见病因的是()。
下列定义是许慎为“形声”所下的是()