皮皮学,免费搜题
登录
搜题
【单选题】
回答下列各题: Looking back on my childhood,I am convinced thatnaturalists are born and not made.Al-though we werebwught up in the same way,my bwthers and sisters soonabandoned theirpressed flowers and insects.Unlike them,I had no ear for music and languages.I wasnot anearly reader and I could not do mental arithmetic. Before World War I we spent our summerholidays in Hungary.I have only the dim memry 0f tlle house we lived in,of my room and my toys.Nor do I recallclearly the large family ofgrandparents,aunts,uncles and cousins who gathered next door.ButI do have a crystalclearmemory of the dogs,the farmanimals,the local birds,andabove all,the insects. I am a naturalist,not a scientist.I have a strong love of the natural world and my enthusiasmhad ledme into varied investigations.I love discussing myfavorite topics and enjoy burning themidnight oil while reading about otherpeople’s observations and discoveries.Then somethinghap-pens that brings these observations together in my conscious mind.Suddenly you fancy you flee theanswer to the riddie,because it all seems to fit together.Thishas resulted in my publishing 300 -pets,and books,which some might honour with the title of scientific research. But curiosity,a keen eye,a goodmemory and enjoyment of the animal and plant world donot make a scientist:one the outstanding and essential qualities required isself-discipline,aquality I lack.A scientist requires not only self-discipline but hard training,determination anda goal.A scientist,up to a point,can be made.A naturalist is born.If you can combinethetwo,you get the best of both wodds. The author can’t remember his relativesclearly because_________.
A.
he was too young when helived with them
B.
he was fully occupied withobserving nature.
C.
he didn’t live very longwith them
D.
the family was extremelylarge
拍照语音搜题,微信中搜索"皮皮学"使用
参考答案:
参考解析:
知识点:
.
..
皮皮学刷刷变学霸
举一反三
【简答题】In the words prewar, bloody, impossible, pre-, -y, im- are called ________ affixes.
【单选题】以下哪组抗结核药为不含全杀菌药
A.
乙胺丁醇,乙硫异烟肼,氨硫脲
B.
异烟肼,链霉素,乙胺丁醇
C.
异烟肼,利福平,乙胺丁醇
D.
异烟肼,吡嗪酰胺,氨硫脲
E.
异烟肼,利福平,乙硫异烟肼
【多选题】哪两个问题是广播风暴导致的结果?(选择两项。)
A.
在广播风暴期间,交换机将向路由器转发过多的第 2 层广播流量,然后路由器会将这些广播转发到其连接的网络。
B.
由于广播风暴期间的处理需求很高,广播域中终端站之间的通信可能会失败。
C.
当网络中广播流量饱和时,系统会将到达交换机的新流量转发到广播域中,这会进一步消耗可用带宽。
D.
在广播风暴期间,经常更改 MAC 地址表会阻止交换机准确转发帧。
E.
在广播风暴期间,具有高速接口的交换机将在半双工模式下转发流量以便节省可用带宽。
【判断题】溶解在成膜物质中的溶剂,施工后应全部挥发掉,无残余。
A.
正确
B.
错误
【多选题】ARP 操作可能会引起哪两个网络问题?(请选择两项。)
A.
手动配置静态 ARP 关联可能会促进 ARP 毒化或 MAC 地址欺骗。
B.
在带宽较低的大型网络中,多个 ARP 广播可能会导致数据通信延迟。
C.
网络攻击者可能会控制 ARP 消息中的 MAC 地址和 IP 地址映射,以图拦截网络流量。
D.
大量 ARP 请求广播会导致主机 MAC 地址表溢出并阻止主机通过网络通信。
E.
多个 ARP 应答会使交换机 MAC 地址表包含的条目与连接到相关交换机端口的主机 MAC 地址表匹配。
【单选题】It’s reported that medical examination (体检)will help us find out health problems as early as possible.
A.
normal
B.
general
C.
regular
D.
common
【单选题】ARP 操作可能会引起哪两个网络问题?(请选择两项。)
A.
多个 ARP 应答会使交换机 MAC 地址表包含的条目与连接到相关交换机端口的主机 MAC 地址表匹配。
B.
网络攻击者可能会控制 ARP 消息中的 MAC 地址和 IP 地址映射,以图拦截网络流量。
C.
大量 ARP 请求广播会导致主机 MAC 地址表溢出并阻止主机通过网络通信。
D.
手动配置静态 ARP 关联可能会促进 ARP 毒化或 MAC 地址欺骗。
E.
在带宽较低的大型网络中,多个 ARP 广播可能会导致数据通信延迟。
【简答题】说明S-I=(GP-NT)+(EX-IM)的内涵。
【简答题】It’s im-bloody-possible to complete the task within such a short time.
【判断题】Bloody Mary is Henry VIII's youngest daughter.
A.
正确
B.
错误
相关题目: