内河船舶吨位证书和（）证书在正常情况下为长期有效。
参考答案：内河船舶乘客定额
下面有关大脑半球的描述，请选出正确一项：
A．脑岛位于额叶深部
B．中央前回属于顶叶
C．额顶叶以中央沟分界
D．半卵圆中心为灰质结构
E．扣带回在胼胝体下方
She _______ her tears and continued to fight against the cruel customs that killed her daughter. [ ]
A. wiped out
B. wiped away
C. wiped up
D. wiped down
