题目内容

Complete the sentences with the correct prepositions (infinitives) .We were late our train, and had no time ___ spare for a conversation with a friend who had come around for a chat.

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Complete the sentences with the correct prepositions (infinitives) .You will get a lot more _ of your holiday if you look about _ beaches and restaurants that are not full of tourists.

NB-IOT设备电池寿命可以提高至少10年,同时还能提供全面的室内蜂窝数据连接覆盖。

A. 对
B. 错

eMTC具有四大优势:移动性、可定位、支持语音和速率高。

A. 对
B. 错

5G网络特点:用户体验速率达到1000Mbit/s。

A. 对
B. 错