The first use of nuclear weapons was in 1945 and their power ________ increased ever since.A is B was C has beenD had been此题为什么答案选C, 请分析一下,谢谢.

来源:学生作业帮助网 编辑:作业帮 时间:2024/05/12 13:39:34
The first use of nuclear weapons was in 1945 and their power ________ increased ever since.A is          B was        C has beenD had been此题为什么答案选C, 请分析一下,谢谢.

The first use of nuclear weapons was in 1945 and their power ________ increased ever since.A is B was C has beenD had been此题为什么答案选C, 请分析一下,谢谢.
The first use of nuclear weapons was in 1945 and their power ________ increased ever since.
A is B was C has been
D had been
此题为什么答案选C, 请分析一下,谢谢.

The first use of nuclear weapons was in 1945 and their power ________ increased ever since.A is B was C has beenD had been此题为什么答案选C, 请分析一下,谢谢.