患儿女，10岁，因“反复腹痛2年，排柏油样粪2d，1h前呕吐咖啡渣样物1次”来诊。乏

在满足相关设施设备要求的条件下，日均旅客发送量在2000人次以上，不足3000人次的车站是()。

A.二级车站

B.三级车站

C.四级车站

D.五级车站

阅读理解。

China's Manned Space Program The first stage The second stage The third stage Time: October 15, 2003 Spaceship: Shenzhou Ⅴ Main events: Chinese spaceman Yang Liwei was sent up into space. He went around the earth 14 times in his one-day flight. China became the third country to succeed in manned space flight. Time: October 12, 2005 Spaceship: Shenzhou Ⅵ Main events: Chinese spacemen Fei Junlong and Nie Haisheng were both sent up into space. On October 17, the two Chinese space heroes safely returned to the earth. Future plans 1. China will make a manned moon landing at a proper (适当的) time around 2017. 2. China plans to set up a permanent (永久的) space lab, and build its engineering system in the near future.

1. The Chinese spaceman traveling in space in the autumn of 2003 is _____.

A. Yang Liwei B. Fei Junlong C. Nie Haisheng D. Zhai Zhigang

2. Before China, how many countries had already sent their spacemen into space?

A. Only one. B. Two. C. Three. D. We don't know.

3. Shenzhou V circled the earth in space _____.

A. once B. four times C. five times D. fourteen times

4. During the second stage, Chinese spacemen stayed in space for _____.

A. one day B. four days C. five days D. fourteen days

5. Chinese spacemen will possibly walk on the moon around _____.

A. 2007 B. 2008 C. 2010 D. 2017

填上合适的单位名称。 

1．小文的身高约120（   ）。         2．床的长约是2（   ）。 

3．文具盒长约20（   ）。               4．数学书长约25（   ）。 

5．房子高约5（   ）。                    6．跑道长约100（   ）。 

7．公共汽车长约10（   ）。           8．门宽约90（   ）。 

9．香蕉长约15（   ）。                  10．课桌高约80（   ）。

美国科研人员正在研制一种新型镍铜长效电池，它是采用铜和半衰期长达100年的放射性同位素镍63（

6328

Ni）两种金属作为长寿命电池的材料，利用镍63发生一次β衰变变成铜（Cu），同时释放电子给铜片，把镍63和铜片做电池两极．则镍63的衰变方程是______，铜片是该电池的______（选填“正极”或“负极”）．

下列对于对话报价表述正确的是（）

A、本币市场所有采用询价交易方式的产品都必须经由对话报价成交

B、对话报价对报价方具有约束力，对手方交易成员确认即可成交

C、不需完整填写所有达成交易必须的交易要素

D、可针对全市场发出