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问题 填空题

已知回声比原声滞后0.1s以上，人耳才能区分回声和原声，要听到自己的回声，与障碍物的距离至少应该为______．

答案

声音在空气中传播的速度为340m/s，

S=Vt=340m/s×

1
2
×0.1s=17m

故答案为：17m．

改错题

下面短文中有10处语言错误。请在有错误的地方增加、删除或修改某个单词。

增加：在缺词处加一个漏字符号（∧），并在该漏字符号下写上该加的词。

删除：把多余的词用斜线（ \ ）划掉。

修改：在错的词下划一横线，并在该横线下写上修改后的词。

注意：1、每处错误及其修改均仅限一词；

2、只允许修改10处，多者（从第11处起）不计分。

Last Saturday, mom and I went to buy a down jacket for my grandpa. When we got to a big store, we saw down jackets of vary colours and styles. There were so many of them that it spent us quite a while to decide which one to buy. Finally, under the help of the shop assistant, he selected a black thick jacket for grandpa. Immediately, we returned back home to show itto my grandpa. Seeing it, he was very happy and couldn’t wait to put on. But we were annoyingto find something was wrong with the zipper. Hurriedly, I took it back to the store and explained the shop assistant the problem To my satisfaction, she is very kind and helped me choose another one patiently. Stand in front of the mirror, my grandpa looked at himself in the new coat, smilingcontently. How delighted I was! 
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问答题


某企业本月共有A、B、C、D、E五名员工，其中D为本月新调入的员工，E为本月新参加工作的员工，A、B、C三名员工上一年度的月平均工资分别为1500元、1800元和2000元，D本月的工资为2000元，E本月的工资为1200元。
问题：

计算该公司每位员工本月个人应缴存的住房公积金金额(该企业所在城市员工个人住房公积金的缴存比例为8%)。
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