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【多选题】
关于复用段保护倒换，描述正确的是（）。A.
K1、K2两个字节用作传送自动保护倒换（APS）信令
B.
ITU-T标准规定：16个ADM站点组成的复用段保护环，1200公里，其倒换时间应小于50ms
C.
RLOS、B1OVER、MSAIS、B2OVER、B2SD都是是复用段的倒换条件
D.
两纤双向复用段保护环上最大可保护的业务容量为M×（STM-N）/2，M为环上节点数合波功能
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举一反三
【单选题】Lunch is available in Peking House______.
A.
every day
B.
every other day
C.
all weekends
D.
all weekdays
【简答题】普通晶闸管的图形符号是___三个电极分别是___、___、___
【单选题】--- Mike, what did our monitor say just now? --- Every boy and every girl as well as the teachers who _____ to visit the museum _____ asked to be at the school gate before 6:30 in the morning.
A.
is ; is
B.
are; are
C.
is; are
D.
are; is
【单选题】According to the letter, when will meetings be held?
A.
Every Monday
B.
Every Tuesday
C.
Every Wednesday
D.
Every Thursday
【单选题】---Did you go to the show last night? --- Yeah． Every boy and every girl in the area ____ invited．
A.
were
B.
was
C.
has been
D.
have been
【单选题】关节松动技术分级振动技术中的I级手法是指
A.
治疗师在关节活动范围内小范围、节律性地来回推动关节
B.
治疗师在关节活动范围内大范围、节律性地来回推动关节
C.
治疗师在关节活动允许范围内的起始端小范围、节律性地来回推动关节
D.
治疗师在关节活动允许范围内的终末端小范围、节律性地来回推动关节
E.
治疗师在关节活动的终末端，大范围、节律性地来回推动关节
【简答题】普通晶闸管的图形符号是___三个电极分别是___、___、___
【简答题】It is requested that every student ______ a paper on sustainable development. A) writes B) wrote C) writing D) write
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