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【单选题】
设有定义 int i=6; 则执行以下语句后, i 的值是( ) i+=i-1;
A.
10
B.
121
C.
11
D.
100
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皮皮学刷刷变学霸
举一反三
【多选题】Which two of the following are true regarding the distance-vector and link-state routing protocols?
A.
Link state sends its complete routing table out all active interfaces at periodic time intervals.
B.
Distance vector sends its complete routing table out all active interfaces at periodic time intervals.
C.
Link state sends updates containing the state of its own links to all routers in the internetwork.
D.
Distance vector sends updates containing the state of its own links to all routers in the internetwork.
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【单选题】What are the advantages of Distance Vector Routing over Link State Routing?
A.
Converges faster, especially when links go down
B.
Requires less computation in each router
C.
The computed routes are of better quality
D.
Requires more information to be exchanged by the routers
查看完整题目与答案
【多选题】A、B、C和D都是周期表中前20号元素，已知A的阳离子和C的阴离子具有相同的核外电子排布，且能形成组成为AC的化合物；C和D属同族元素，其中C中核外电子数是D中核内质子数的2倍．B和D同周期且B的同素异形体之一是原子晶体．下列说法中正确的是（　　）
A.
D元素处于元素周期表中第2周期第Ⅵ族
B.
AD 2 中可能既有离子键又有共价键
C.
四种元素的原子半径A＞C＞D＞B
D.
BCD分子一定是直线型非极性分子
查看完整题目与答案
【单选题】It’s really unwise of some teenagers from low-income families to spend a large sum of money on Apple products ______ they could buy other cheaper brands.
A.
unless
B.
when
C.
so that
D.
in case
查看完整题目与答案
【单选题】如果一个人老是抱怨分配给他的工作,但是没有人理睬他,也不给他换工作,也许过一段时间他就不抱怨了。这体现的是强化理论里面的( )。
A.
惩罚
B.
消除
C.
负强化
D.
正强化
查看完整题目与答案
【单选题】X、Y、Z、W都是元素周期表中前20号元素，它们的原子序数依次增大。已知： ① W的阳离子和Z的阴离子具有相同的核外电子排布，且能形成组成为WZ的化合物； ② Z和Y属同族元素，它们能形成两种常见化合物； ③ X和Y属同一周期元素，它们能形成两种气态化合物； ④ W和X能形成组成为WX 2 的化合物； ⑤ X和Z不在同一周期，它们能形成组成为XZ 2 的化合物。 下列说法不正确的是
A.
XY 2 是以极性键结合成的非极性分子
B.
XY 2 、XZ 2 的化学键类型和晶体类型都相同
C.
WY、ZY 2 分子中所有原子最外层都为8电子结构
D.
离子半径大小顺序为Y＜W＜Z
查看完整题目与答案
【多选题】The statements below compare and contrast link state and distance vector routing protocols. Which of these are true?（）
A.
Distance vector protocols send the entire routing table to directly connected neighbors.
B.
Distance vector protocols are responsible for sending updates to all networks listed in the routing table.
C.
Link state protocols are responsible for sending the entire routing table to the whole network.
D.
Link state protocols send updates regarding their own links status to all other routers on the network.
查看完整题目与答案
【单选题】Some teenagers from home after a fight with their parents.
A.
s ome
B.
go
C.
run away
D.
go to
查看完整题目与答案
【单选题】关于MOSFET的短沟道效应和窄沟道效应描述错误的是()
A.
MOSFET的短沟道效应是指当MOSFET的沟道长度可与源，漏的结深相比拟时，阈值电压随着沟道的缩短而减小
B.
MOSFET的短沟道效应主要是由于栅氧两端的电压降减小，进而引起阈值电压减小
C.
MOSFET的窄沟道效应是指沟道宽度W很小时，阈值电压将随着W的减小而增大
D.
MOSFET的窄沟道效应主要是由于栅氧两端的电压降减小，进而引起阈值电压增大
查看完整题目与答案
【多选题】Which two of the following are true regarding the distance-vector and link-state routing protocols?(Choose two.)
A.
Link state sends its complete routing table out all active interfaces on periodic time intervals.
B.
Distance vector sends its complete routing table out all active interfaces on periodic time intervals.
C.
Link state sends updates containing the state of their own links to all routers in the internetwork.
D.
Distance vector sends updates containing the state of their own links to all routers in the internetwork.
查看完整题目与答案
相关题目：
【多选题】Which two of the following are true regarding the distance-vector and link-state routing protocols?
A.
Link state sends its complete routing table out all active interfaces at periodic time intervals.
B.
Distance vector sends its complete routing table out all active interfaces at periodic time intervals.
C.
Link state sends updates containing the state of its own links to all routers in the internetwork.
D.
Distance vector sends updates containing the state of its own links to all routers in the internetwork.
查看完整题目与答案
【单选题】What are the advantages of Distance Vector Routing over Link State Routing?
A.
Converges faster, especially when links go down
B.
Requires less computation in each router
C.
The computed routes are of better quality
D.
Requires more information to be exchanged by the routers
查看完整题目与答案
【多选题】A、B、C和D都是周期表中前20号元素，已知A的阳离子和C的阴离子具有相同的核外电子排布，且能形成组成为AC的化合物；C和D属同族元素，其中C中核外电子数是D中核内质子数的2倍．B和D同周期且B的同素异形体之一是原子晶体．下列说法中正确的是（　　）
A.
D元素处于元素周期表中第2周期第Ⅵ族
B.
AD 2 中可能既有离子键又有共价键
C.
四种元素的原子半径A＞C＞D＞B
D.
BCD分子一定是直线型非极性分子
查看完整题目与答案
【单选题】It’s really unwise of some teenagers from low-income families to spend a large sum of money on Apple products ______ they could buy other cheaper brands.
A.
unless
B.
when
C.
so that
D.
in case
查看完整题目与答案
【单选题】如果一个人老是抱怨分配给他的工作,但是没有人理睬他,也不给他换工作,也许过一段时间他就不抱怨了。这体现的是强化理论里面的( )。
A.
惩罚
B.
消除
C.
负强化
D.
正强化
查看完整题目与答案
【单选题】X、Y、Z、W都是元素周期表中前20号元素，它们的原子序数依次增大。已知： ① W的阳离子和Z的阴离子具有相同的核外电子排布，且能形成组成为WZ的化合物； ② Z和Y属同族元素，它们能形成两种常见化合物； ③ X和Y属同一周期元素，它们能形成两种气态化合物； ④ W和X能形成组成为WX 2 的化合物； ⑤ X和Z不在同一周期，它们能形成组成为XZ 2 的化合物。 下列说法不正确的是
A.
XY 2 是以极性键结合成的非极性分子
B.
XY 2 、XZ 2 的化学键类型和晶体类型都相同
C.
WY、ZY 2 分子中所有原子最外层都为8电子结构
D.
离子半径大小顺序为Y＜W＜Z
查看完整题目与答案
【多选题】The statements below compare and contrast link state and distance vector routing protocols. Which of these are true?（）
A.
Distance vector protocols send the entire routing table to directly connected neighbors.
B.
Distance vector protocols are responsible for sending updates to all networks listed in the routing table.
C.
Link state protocols are responsible for sending the entire routing table to the whole network.
D.
Link state protocols send updates regarding their own links status to all other routers on the network.
查看完整题目与答案
【单选题】Some teenagers from home after a fight with their parents.
A.
s ome
B.
go
C.
run away
D.
go to
查看完整题目与答案
【单选题】关于MOSFET的短沟道效应和窄沟道效应描述错误的是()
A.
MOSFET的短沟道效应是指当MOSFET的沟道长度可与源，漏的结深相比拟时，阈值电压随着沟道的缩短而减小
B.
MOSFET的短沟道效应主要是由于栅氧两端的电压降减小，进而引起阈值电压减小
C.
MOSFET的窄沟道效应是指沟道宽度W很小时，阈值电压将随着W的减小而增大
D.
MOSFET的窄沟道效应主要是由于栅氧两端的电压降减小，进而引起阈值电压增大
查看完整题目与答案
【多选题】Which two of the following are true regarding the distance-vector and link-state routing protocols?(Choose two.)
A.
Link state sends its complete routing table out all active interfaces on periodic time intervals.
B.
Distance vector sends its complete routing table out all active interfaces on periodic time intervals.
C.
Link state sends updates containing the state of their own links to all routers in the internetwork.
D.
Distance vector sends updates containing the state of their own links to all routers in the internetwork.
查看完整题目与答案