在倾角为θ的斜面上O点以初速度v0平抛一小球,小球落在斜面上A点.求: (1)小

题型:问答题

问题:

在倾角为θ的斜面上O点以初速度v0平抛一小球,小球落在斜面上A点.求:

(1)小球从O飞到A点的时间及O、A两点间的距离.

(2)从抛出开始经多长时间离斜面最远?最远距离为多少?

考点:平抛运动
题型:问答题

第四部分写作技能 (共两节,满分25分)

双向翻译(共5小题;每小题2分,满分10分)

请根据上下文内容,将文中划线部分译成汉语或者英语。

Justin has been missing for two weeks now. I miss him a lot.  61  I’m worried that something bad has happened to him. I’m sure he came home that night at around 11p.m. 62 我听见他放自己最喜欢的CDI wonder where the aliens with large black eyes have taken him.

Mavis told me that creatures from outer space took her away a few years ago. They did some  research on her. 63  The whole experience was very frightening, just like a nightmare, but at least they returned her home. I hope they will return Justin soon.

64 警察没有取得多大进展。Now they are searching for other witnesses. They say Justin might have been murdered. Dad is very disappointed with them. He thinks they are not doing their job properly. Mum is really worried, too. She can’t sleep well.  65  I hope Justin will come home soon and tell us what happened to him. I want all of us to be together again.

61  ______________________________________________________

62  ______________________________________________________

63  ______________________________________________________

64  ______________________________________________________

65  ______________________________________________________

题型:问答题

对直径小于3cm的早期原发性肝癌,有较高诊断价值的检查方法是()

A.超声波

B.AKP

C.腹部X线摄片

D.放射性同位素扫描

E.AFP

题型:问答题

某企业上年末的资产;总额为8000万元,负债总额为3500万元,所有者权益总额为4500万元(其中未分配利润为500万元);本年度发生主营业务收入3000万元,销售折让20万元,主营业务成本1200万元,主营业务税金及附加100万元,其他业务收入200万元,其他业务支出120万元,营业费用400万元,管理费用260万元,财务费用150万元,营业外收入30万元,营业外支出80万元;本年末的资产总额为9800万元,负债总额为4000万元,所有者权益总额为5800万元。本年末发生的部分经济业务如下:
(1)按规定税率33%计算出应交纳的所得税为297万元。
(2)按净利润的10%和5%分别计提法定盈余公积和法定公益金。
(3)按规定计算出应分配给普通股股东的现金股利301.5万元。
[说明]本题已过时。

根据上述资料,计算该企业本年度的资本积累率为( )。

A.(5800-4500)/4500x100%=28.89%

B.(5800-4500)/5800x100%=22.41%

C.(5800-4500)/(4500+5800)×100%=12.62%

D.(5800-4500)/[(4500+5800)÷2]×100%=25.24%

题型:问答题

X线的特性下列哪项错误()。

A.反射作用

B.穿透性

C.荧光作用

D.摄影作用

E.电离作用

题型:问答题

扰的形成必须具备三项因素,即干扰源、()及接收电路。

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