3.8This song is very ()with young people.

A. 　 Therefore

B. 　 However

C. 　 Otherwise

D. 　 Besides

A. 　remembered

B. 　 forgot

C. 　 doubted

D. 　 imagined

A. 　不填;the

B. 　不填;an

C. 　the; an

D. 　 a; the

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. 　 dirty

B. 　 dark

C. 　 clean

D. 　 hot

A. 　 caused

B. 　 fought

C. 　 caught

D. 　 treated

A. 　 in

B. 　on

C. 　 by

D. 　at

A. 　 there

B. 　 here

C. 　 where

D. 　 now

A. 　discovered

B. 　 allowed

C. 　 shared

D. 　 mentioned