______ to nuclear radiation, even for a short time, may influence genes in human bodies.
#93806
A
Exposed
B
Being exposed
C
To expose
D
Having exposed
推荐题目
The children all turned ________ the famous actress as she entered the classroom.
#88836
A
looked at
B
to look at
C
to looking at
D
look at
To everyone’s surprise, Michael claimed _____ all his homework in just one hour.
#95895
A
having finished
B
to have finished
C
that finished
D
finishing
．—What do you think made hi m so excited? —_________a scholarship to Harvard, I suppose.
#97627
A
He has won
B
Winning
C
Because of winning
D
Because he has won