As we know, too much ________ to Xrays can cause skin burns, cancer or other damage to the body.
#5051
A
contact
B
appeal
C
exposure
D
contribution
推荐题目
We volunteered to collect money to help the ______ of the tsunami.
#6874
A
victims
B
folks
C
fellows
D
villagers
—You are always full of _______.Can you tell me the secret?—Taking plenty of exercise every day.
#7509
A
power
B
strength
C
force
D
energy
Opinions of that kind are best kept to yourself, and not voice＿＿＿＿＿．
#7202
A
by public
B
in public
C
in a public
D
in the public
I do hope that you can give me some good _______ on how to improve my spoken English.
#5633
A
bases
B
tips
C
fares
D
opinions
Ten years had passed. I found she had _______.
#7234
A
a few white hairs
B
a little white hair
C
some white hair
D
more fifty hair