早期矽肺患者，肺功能改变程度与X线胸片表现严重程度（）。
A.一定一致
B.不一定一致
C.前者重于后者
D.后者重于前者
E.两者毫无关系
参考答案：B
If the decision by the Customs on the dispute over duty payment is not acceptable to the duty payer, the duty payer has the right to sue ( ) the People's Court within 15 days of receipt of the decision.
A．in
B．to
C．on
D．at
铰刀齿数一般取偶数，是为了便于测量铰刀直径和在切削中使切削力对称，使铰出的孔有较高精度和圆度。( )
