阅读下面短文，按照句子结构的语法性和上下文连贯的要求，在空格处填入一个适当的词或使用括号中词语的正确形式填空。

Silence means no sound. But in fact, there is no 小题1: thing as true silence for a living being, because silence 小题2:   is an exposure of the mind and the heart.

Some people use silence as a disguise(伪装) of the小题3: (empty) of the head. Some use it as 小题4: means to describe their puzzlement and sadness. And some use it as a way of 小题5: (express) their angers.

What do silent people say? They say that “silence is golden”, but 小题6: is the nature of this “gold”? It can include honesty and kindness; it can stand for separation 小题7: fame and fortune;   小题8: it can also act as an excuse for untruthfulness and cunning.

Is it true that permanent silence小题9: (represent) by death?

Perhaps even death cannot represent true silence, for the carrier of the soul can turn into dust, so that the sincere and wise voices小题10: are from the bottom of the heart will cause long-lasting echoes in the seas of human hearts.

某运动员在进行百米跑的过程中，在起跑阶段正在做匀加速直线运动，假设他前面的路面突然变成冰面(摩擦力不计)，则在冰面上他会（     ）

A．做匀速直线运动

B．继续维持匀加速直线运动

C．继续向前运动但速度减小

D．马上静止