旋转刹车太松，制动效果不佳的原因是（）。旋转刹车踩不下，不回不起的原因是（）。

根据短文内容，判断句子的正（T）误 （F）。

     Food Bank is people volunteering to put food into bags. Then, some people give the bags to poor

people, homeless people, and disability people. Usually, the food is milk, dry noodle, vegetables, and

fruits.

     There is a food bank in my school. Also, the food bank need students to help.

     After school, I came to the dinning room. Many students met there. All girls opened the bags and put

each paper bag into one plastic bag. Boys put them on the tables. Some girls put different kinds of food

into different places. The bags and food were ready.  We began to put food into bags.  We stood in four

lines. Each person took care one kind of food. I took care of milk. I put one bottle of milk into bag,  

and passed to another person. People put food into bags one by one. Soon, bags were getting at the

end of lines.

     Even I got nothing from the food bank. I still enjoyed it. I can feel the poor people's happiness when

they open the bags.

( )1. People work in a food bank to make some money.

(     )2. Students can't work for the food bank because they have no time.

(     )3. The food bank, also need some students to help.

(     )4. They go to the food bank to help put food into bags.

(     )5. Although they got nothing from the food bank, they still felt happy.

不当得利是指没有合法根据，或事后丧失了合法根据而被确认为导致他人遭受损失而获得的利益。

根据上述定义，下列不属于不当得利的是：（）

A．甲偶然从地里挖出一块钻石卖了十五万元

B．乙取款时因取款机故障，多取了一万元而存款额并未减少

C．丙因顾客疏忽、忘要找零而将三十三元零钱据为己有

D．丁隐瞒在餐厅捡到的某公司会计掉的装有二万元的信封

以下软件中属于常用的下载工具的有___。

A.迅雷

B.网际快车

C.暴风影音

D.QQ下载器

采购订单上001存货数量为10，参照该采购订单部分生成采购到货单的001存货数量为2，则下面说法正确的是（）。

A.可以参照该采购订单8个生成采购入库单，参照该到货单2个生成采购入库单

B.可以参照该采购订单10个生成采购入库单

C.可以参照该到货单2个生成采购入库单

D.可以参照该订单8个生成采购入库单

下列关于多动症的观点中正确的是（）。

A.这类儿童一般智力不正常

B.常见的儿童心理障碍

C.不存在与心理年龄不相符合的心理问题

D.突出表现为活动过多，但注意力相对集中