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【单选题】
LTE系统中, UE在20M带宽内,上下行2:2,特殊子帧10:2:2条件下的下行峰值速率()A.
25Mbit/s
B.
50Mbit/s
C.
60Mbit/s
D.
200Mbit/s
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举一反三
【简答题】454十999×999十545．
【单选题】The following are the common student groupings in classroom. Decide what way that the teacher group students in each situation. It refers to the time when all the students are under the control of the...
A.
Individual study
B.
Group work
C.
Pair work
D.
Whole class work
【简答题】The teacher all the tests at the weekend and marked most of them.
【简答题】二999×二998二998-二998×二999二999=______．
【简答题】用计算器计算下列各式，将结果写在横线上． 999×21=______；999×22=______；999×23=______；999×24=______． （1）你发现了什么？ （2）不用计算器，你能直接写出999×29的结果吗？
【单选题】—Let’s go to the zoo next week. —Why not go to the mountains? We can go there.
A.
boating
B.
hiking
C.
swimming
D.
shopping
【单选题】防呆是一种预防、矫正的行为约束手段，运用避免产生错误的限制方法，让操作者不需要花费注意力、也不需要经验与专业知识即可直觉无误地完成正确的操作。 根据上述定义，下列不属于防呆的是（ ）。
A.
某公司用公章代替手写公司签名
B.
自动照相机若光线不足，则快门按不下去
C.
汽车安全带提示系统在司机忘记系安全带时不停发出警告声
D.
对造成公司损失的员工进行现金处罚，以防止类似行为再次发生
【简答题】1999+999×999．
【单选题】The students all the exercises, the teacher went on to explain the test.
A.
having done
B.
being done
C.
doing
D.
having been done
【单选题】It refers to the time when all the students are under the control of the teacher. They are all doing the same activity at the same rhythm and pace. During the period, the teacher asks questions and st...
A.
Individual study
B.
Group work
C.
Pair work
D.
Whole class work
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