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【单选题】
三端稳压器W7805的输出电压是()。
A.
5V
B.
15V
C.
由外接电路决定
D.
不确定
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参考答案:
举一反三
【简答题】哪位运动员实现了我国在奥运史上金牌的“零的突破” ( )
【单选题】下列不属于网络传输介质的是( )。
A.
双绞线
B.
光缆
C.
同轴电缆
D.
网卡
【简答题】These students have learned to (适应新环境). (adapt to)
【判断题】发动机冷却系不需要定期检查密封性。
A.
正确
B.
错误
【单选题】下列不属于网络传输介质的是()
A.
光纤
B.
双绞线
C.
中继器
D.
同轴电缆
【单选题】These students have little_____for how others look at them.
A.
thinking
B.
thought
C.
concern
D.
consideration
【单选题】以下属于分层实体制造技术的缺陷的是( )。
A.
不能直接制作塑料工作
B.
工件的抗拉强度和弹性不够好
C.
工件表面有台阶级
D.
工件不易吸湿膨胀
【单选题】下列不属于网络传输介质的是( )。
A.
双绞线
B.
同轴电缆
C.
光缆
D.
网卡
【单选题】Teenagers are under a lot of pressure to be thin. They are led to believe that the only way they can be accepted and fit in, is if they are thin. They resort to starving, vomiting and eating only diet...
A.
Fashion shows.
B.
Two famous places in America.
C.
Popular TV shows.
D.
Two TV channels.
【单选题】Teenagers are under a lot of pressure to be thin. They are led to believe that the only way they can be accepted and fit in, is if they are thin. They resort to starving, vomiting and eating only diet...
A.
Fashion shows.
B.
Two famous places in America.
C.
Popular TV shows.
D.
Two TV channels.
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