纳税人以代销方式销售货物，在收到代销清单后且已收到全部或部分货款的，其纳税义务发生时

《资治通鉴》评价此人：“政由己出，明察善断，故当时英贤亦竟为之用”。 当代史学家郭沫若评价此人：“政启开元，治宏贞观。”该皇帝是（  ）

A．隋文帝

B．唐太宗

C．武则天

D．唐玄宗

如图，在平面直角坐标系xOy内，第1象限存在沿y轴负方向的匀强电场，第Ⅳ象限以ON为直径的半圆形区域内，存在垂直于坐标平面向外的匀强磁场，磁感应强度为B。一质量为m、电荷量为q的带正电的粒子，从y轴正半轴上y=h处的M点，以速度v₀垂直于y轴射入电场，经x轴上x=2h处的P点进入磁场，最后以垂直于y轴的方向射出磁场。不计粒子重力。求：

（1）电场强度大小E；

（2）粒子在磁场中运动的轨道半径r；

（3）粒子从进入电场到离开磁场经历的总时间t。

I hated dinner parties .But I decided to give them another shot because I’m  in London. And my friend Mallery invited me . And because dinner parties in London are very different from those  in New York,  “I’m having a dinner party ” means : “I’m booking a table for 12 at a restaurant  you can’t afford ang we’ll be sharing the cheque evenly , no matter what you eat.” Wors , in  Manhattan there  is  always someone who  leaves before  the  bill arrives  .They’ll throw  down cash, half of what  they owe, and then people like me, who don’t  drink, end  up paying even  more . But if try to use the same  trick  , the hostess will shout; “Where are you going ?” And it’s not like I can  say I have somewhere to go : everyone knows I have  nowhere to go.

But in London, dinner patise are in people’s homes . Not only that, the guests  are an interesting  mix .The last time I went to one , the guests were from France , India ,Denmark and  Nigeria; it was like a gathering  at the United Nations . In New York ,the mix is less striking . It’s  like a gathering at Bloomingdat="le’s" , a well-known de partment  store.

For New Yorkers, talking ,talking  about  other  parts  of the world  means Brooklyn  and Queens in New Yorkers.But at Mallery’s ,when I side that I had been to Myanmar recently, peo ple knew where it was , In New Yorkers people would think it was a usual culb.

1.What does the word “shot” in Paragraph I pro baly mean?

A.  Choice B. Try   C. Style   D.Goal

2. What does  the writer  dislike most about  dinner  parties  in New Yorkers

A. There  is a stange mix of people.

B. The restaurants are expensive.

C. The bill is not fairly shared.

D. People  have  to  pay cash 

3.What does the author think of the parties in London?

A. A bit unusual   B. Full of tricks  C.Less costly  D. More interesting

4.What  is the author’s opininon of some New Yorkers from her experience?

A.Easy-going B. Self-centred.   C.Generous D.Conservative

角膜炎的病因为（）、（）、（）。

境内机构持有的境外企业股权因转股、破产、解散、清算、经营期满等原因注销的，境内机构应在取得境外直接投资主管部门相关证明材料之日起（）内，凭相关材料到所在地外汇局办理注销境外直接投资外汇登记手续。

A、15天，

B、30天，

C、45天，

D、60天。