A、 discovering
B、 returning
C、 borrowing
D、 making
答案:D
A、 discovering
B、 returning
C、 borrowing
D、 making
答案:D
A. 危害人体的电磁辐射
B. 电磁辐射与环保
C. 电磁辐射的热作用和非热作用
D. 无处不在的电磁辐射
A. 不填;the
B. 不填;an
C. the; an
D. a; the
A. since
B. when
C. as
D. while
A. has woken up
B. is waking up
C. will wake up
D. wakes up
A. try
B. mind
C. prefer
D. stop
A. waste
B. bed
C. dress
D. use
A. was cooking
B. cooks
C. has cooked
D. cooked