我国规定，不得参与放射工作的年龄限制为（）
A.15岁以下
B.16岁以下
C.17岁以下
D.18岁以下
E.20岁以下
参考答案：B
梅毒牙是（）
A.二期梅毒损害
B.一期梅毒损害
C.先天梅毒损害
D.后天梅毒损害
E.三期梅毒损害
Your anger suggests that you are seriously ________ the woman, and you need to find out why.[ ]
A. put up with
B. fed up with
C. kept up with
D. came up with
