做曲线运动的物体在运动过程中,下列说法正确的是( )[ A.速度大小一定改变 B

题型:选择题

问题:

做曲线运动的物体在运动过程中,下列说法正确的是(  )[

A.速度大小一定改变

B.加速度大小一定改变

C.速度方向一定改变

D.加速度方向一定改变

考点:斜抛运动
题型:选择题

通过对近一个世纪以来的流感大流行的数据分析,综合这些分析结果,人们得出流感流行的六大气候特征。这说明                                                       (   )

①分析与综合是人们认识事物的重要思维方法

②分析和综合是密不可分的

③分析和综合过程是可逆的

④综合是分析的前提和基础

A.①②

B.②③

C.③④

D.①④

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用一个电源、一个开关、两个电流表、两个灯泡组成了如图所示的四个电路.其中电流A1能正确测量灯L1的电流的是[ ]

A.

B.

C.

D.

题型:选择题

短文改错 (共10小题;每小题1分,满分10分)

Dear Mary,

I am sorry that you had a disagreement with your father. Personal,   76. ________

I think this is important to follow your interests and your abilities,   77. ________

but it sounds as though you have plenty of both of these already.    78. ________

Speak to your father and tell him what you are doing well in the   79. ________

subject of your choice. Furthermore, remind him that many men   80. ________

have chosen to work in fields that are not used to accept women.   81. ________

Ask your father to speak to your teachers and find out how well    82. ________

you are at your chosen subject. Trust you. Trust your own      83. ________

thinking and your choice. Hopefully, your father will respect     84. ________

your choice and let you to do what you want to.           85. ________

Best wishes.

Amy

题型:选择题

我国大力发展航天科技的依据是[ ]

A.我国的科技水平十分落后            

B.科技是推动经济社会发展的强大动力

C.发展航天科技才能成为军事强国      

D.科技是推动生产力发展的唯一因素

题型:选择题

结合病人年龄、性别、体质确立治则的理论依据是()

A.因人制宜

B.因时制宜

C.因地制宜

D.标本兼治

E.审因论治

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