Digital clocks, however precise, they cannot be perfectly accurate because the earth’s rotation changes slightly over years.

Câu hỏi :

Digital clocks, however precise, they cannot be perfectly accurate because the earth’s rotation changes slightly over years.

A they

B perfectly

C the

D slightly

* Đáp án

A

* Hướng dẫn giải

Phương pháp giải:

Copyright © 2021 HOCTAP247