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Given a subnet mask of 255.255.240, which of these addresses is not a valid host address?

在给定子网掩码 255.255.240 的情况下，这些地址中的哪一个不是合法的主机地址？

Given a subnet mask of 255.255.240, which of these addresses is not a valid host address

5 5 。 2 4 0的情况下，这些地址中的哪一个不是合法的主机地址？

As for the long-chained guests such as cationic surfactants with different length of alkyl chain added, they can insert into the CD cavity as a spacer to form a ternary inclusion complex with the host molecule.

同时还发现，化学修饰的环糊精所连发色团与CD形成的"自包结"配合物较相同发光分子与非修饰的环糊精形成的包结物具有更强的结合能力。

Mass proliferation of Trypanosome results in a weakness and death of host. The studies have showed that the variant antigen type known as predominant variant antigen type is limited in early infection; however, a high repetition can be seen and reaches 60%.

有研究表明锥虫在感染动物早中期产生的变异体数目是有限的，且这些变异体出现的重复率很高，最高可达 60%，我们称这些变异体为优势变异体。

The modernOlympic Games are a grand event of peace and friendship for peoplearound the world. The century old dream ofthe Chinese nation to host the Olympic Games has been turned into areality . To stage a high level Olympic Games withdistinctive features is the shared aspiration of all Chinesepeople.

奥运火炬将跨越五洲，抵达地球上21个城市，传遍中国境内113个城市和省区，无论它经过哪里，无论是哪个民族、文化或信仰的人们，都会为此停下脚步，感受奥运火炬承载的和平讯息，领悟进取、友谊和尊重的奥林匹克信念。

The Cordyceps militaris found in Zhaotong, Yunnan Province was investigated. The host insect is Biston falcata, which has one generation a year in Zhaotong and overwinters by pupae. The larvae eat the needles of Pinus aemandii Franch, and therefore is a harmful pest of the pine from mid September to early October.

对云南省昭通地区发现的蛹虫草进行了初步调查，其寄主昆虫为鹰翅桦尺蛾，1年1代，以蛹越冬，幼虫取食华山松叶，为当地华山松纯林的主要害虫，危害高峰期为9月中旬至10月上旬。

Don't put a public host in front of your firewall that uses a predictable IPID sequence.

别把公共主机置于使用可预料的IPID序列的防火墙前。

Their name, geographic location are as follows: Station name of the host country Mizusawa latitude, longitude -141 ° 07'5139 ° 08'3602 Japan AAC kitab -66 ° 52'511850 Russia AC Kaluofute -8 ° 18'448941 Italy AC Gaithersburg 7 ° 1'5713202 the United States AC ukiah 128 ° 12'3512096 the United States AC stations were a uniform Zeiss Zenith device, according to a unified observed star table, observing the outline for continuous observation of latitude, from the Central Bureau of centrally ILS calculations solved polar coordinates, published and made available to the use of units of .1962 began restructuring for the international polar wander service.

它们的名称、地理位置分别为：站名经度纬度所在国水泽－141°07′5139°08′3602日本AAC基塔布－66°52′511850俄国AC卡洛福特－8°18′448941意大利AC盖瑟斯堡＋7°1′5713202美国AC尤凯亚＋128°12′3512096美国AC各台站用统一的蔡司天顶仪、按统一的观测星表、观测纲要进行连续地观测纬度，由ILS中央局统一处理计算，解出地极坐标值，发表并提供给使用单位。1962年开始改组为国际极移服务。

The toxin is a secondary metabolizable production in the pathogenic process of many pathogens,which can cause necrotic spot of the host. So it is a poisonous factor and it is important to the pathogenic activity.

毒素是许多亲和性植物病原菌致病过程中产生的次生代谢产物，离体使用可造成相应的寄主表现坏死斑反应，因此是病原菌的毒性因子，对决定病原菌的致病性有很重要作用。

The fraction is not described, but in the Celtic Rite there was a very complicated fraction, and in the Mozarabic the Sacred Host is divided into nine particles, seven of which are arranged in the form of a cross.

分数不是描述，但在凯尔特人队礼是一个非常复杂的分数，并在摩沙拉神圣主机分为9个粒子，其中7个排列形式的十字架上。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。