题目内容
20、The first use of atomic weapons was in 1945 and their power ____ increased enormously ever since．
A．is B．was C．has been D．had been
试题答案
20、C
The first use of atomic weapons was in 1945, and their power________ increased enormously ever since.
- A.is
- B.was
- C.has been
- D.had been
The first use of atomic weapons was in 1945, and their power ____increased enormously ever since.
A. is B. was C. has been D. had been.
查看习题详情和答案>>The first use of atomic weapons was in 1945, and their power ________ increased enormously ever since.
A. is B. was C. has been D. had been
查看习题详情和答案>>The first use of atomic weapons was in 1945.And their power _______ increased enormously ever since.
A. is B. was?
C. has been D. had been?
查看习题详情和答案>>[ ]
B. was
C. has been
D. had been
B. was
C. has been
D. had been
The first use of atomic weapons was in 1945. and their power _____ increased enormously ever since.
A. is B. was C. has been D. had been
查看习题详情和答案>>The first use of atomic weapons was in 1945. and their power ______ increased enormously ever since.
A. is B. was C. has been D. had been
查看习题详情和答案>>