WCDMA收发信机调制解调采用码分多址的直序扩频技术。
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工作绝缘和保护绝缘的绝缘电阻都不得低于1MQ,加强绝缘的绝缘电阻不得低于2MQ。
A. 正确
B. 错误
销号复装是原用户对已销号的号码进行重新启用,恢复原有号码信息、用户资料的业务,以下关于销号复装业务描述正确的是()
A. 号码已过冷冻期或已被重新启用时不可办理销号复装业务
B. 销号复装后号码的入网时间仍然为销号复装前的入网时间
C. 销号复装只能复装最后一个销号客户的资料
D. 用户销号复装时,旧卡仍然可以使用
E. 销号复装后客户资料不变,但产品需要重新定购,定购流程及生效规则同开户业务
A seaman leaves a vessel before it sails from a foreign port. He informs the Chief Officer that he won’t return. After the vessel sails,the Chief Officer finds the seaman’s work clothes in his locker. How should the Master handle this matter?()
A. Log the seaman as a deserter
B. Log the seaman as a fail to join
C. Log the seaman for misconduct
D. Take no actio
苍蝇喜欢扑向具有腥味的鲜鱼,说明蝇类具有()
A. 扑食性
B. 遗传性
C. 应激性
D. 适应性