某投资者计划投资10万元，投资期限3个月，下列各种投资工具中最适合其投资特征的是(

阅读短文，判断正(√)误(×)。

      The traffic lights are the same in every country. There are always three lights: red, yellow and green. Red

means " Stop ". Yellow means " Wait ", and green means " Go ". In China, drivers drive on the right side of the

road. In the US, drivers drive on the right side, too. In England and Australia, however, drivers drive on the left

side of the road. If you go by car, by bike or on foot, you must know the traffic rules.

( ) 1. There are always three lights in every country: red, yellow and green.

( ) 2. Yellow means " Go ".

( ) 3. In China, drivers drive on the right side of the road.

( ) 4. In the US, drivers drive on the left side.

( ) 5. If you go on foot, you don't have to know the traffic rules.

汽车沿着盘山公路可以驶上高耸入云的山峰，盘山公路修得弯弯曲曲，主要目的是为了__________，载重货车下山时，其重力势能_____（填“增大”“减小”或“不变”），为了减小车速，司机师傅不时踩刹车脚踏板，有一部分机械能转化为_____。

根据企业所得税的法律制度的规定，企业的下列支出中，在计算应纳税所得额时实行加计扣除的有（）。

A.购置用于环境保护专用设备的投资额

B.为开发新技术发生的尚未形成无形资产而计入当期损益的研究开发费用

C.安置残疾人员所支付的工资

D.赞助支出

（）不能避免在表格中插入对象较大时发生撑破现象。

A.减少文字数量

B.缩小图像尺寸

C.调整边框粗细

D.将单元格合并

蒸汽流量不变，过热器管由单管圈变成双管圈，蒸汽流速（）。

A.升高

B.降低

C.不变