【单选题】The ink has faded with time and so parts of the letter were ______.
【单选题】在2008年奥运会中,中国乒乓球健儿们共获得了几枚金牌( )?
【单选题】自动扶梯扶手带的运行速度相对于梯级、踏板或胶带的速度允许偏差为()。
【单选题】Before stamps were used, postage ______.
A.
was paid by the letter-writers
B.
was paid by the letter-receivers
【单选题】扶手带运行速度相对梯级或踏板的运行速度偏差为( )。
【简答题】Most of the articles in the book were written by ______.22:Most of the articles in the book were written by ______.
【单选题】The ink had faded with time and so parts of the letter were illegible.
【单选题】About six months later,the letter they were looking forward to ________at last.