上消化道出血是指出血的部位是（） A.食管至幽门 B.十二指肠以上的消化器官 C.屈

阅读理解。

     The earth moves round the sun, and the moon moves round the earth. When our part (部分) of the earth

turns to the sun, it is day. When our part of the earth turns away from the sun, it is night. The sun is much

bigger than the moon. But sometimes the moon looks bigger than the sun, because it's much nearer to the earth. The sun is very bright. It gives a very strong light. The moon looks quite bright, too. But it doesn't give any

light at all. The moon looks much bigger and brighter than the stars. But in fact the stars are much bigger and

brighter than the moon. They look smaller than the moon because they're much farther away from us.

1._______ moves round ________.

 A. The earth; the moon

B. The moon; the earth

C. The moon; the stars

D. The sun; the earth

2. Sometimes the moon looks bigger than the sun, because _______.

A. it is much bigger than the sun

B. doesn't give a very strong light

C. it is much nearer to the earth than the sun

D. it comes out only at night

3. The sun _______.

A. is very bright, and it gives a very strong light

B. isn't bright, but it gives a very strong light

C. is very big, but it doesn't give any light at all

D. is very round, but it can't move round

4. The stars and _______.

A. look much bigger than the sun

B. look much brighter than the moon

C. are a lot brighter than the moon, but they are not bigger than the moon

D. are much farther away from us than the moon

5. When it is day, _______.

A. our part of the earth turns to the moon

B. the sun looks much smaller than the stars

C. we can't see any stars in the sky

D. the moon turns away from the sun

在距今（）多少年前的古埃及，人们使用壁画记录下了当时各种各样的社会生活，比如捕鱼、狩猎、祭祀等场面。

下列化学实验事实及其解释都正确的是（　　）

A．向碘水中滴加CCl₄，振荡静置后分层，CCl₄层呈紫红色，说明可用CCl₄从碘水中萃取碘

B．向SO₂水溶液中滴加盐酸酸化的BaCl₂溶液，有白色沉淀生成，说明BaSO₃难溶于盐酸

C．向0.1mol/LFeSO₄溶液中滴加少量酸性KMnO₄溶液，KMnO₄溶液褪色，说明Fe²⁺具有氧化性

D．向2.0mL浓度均为0.1mol/L的KCl、KI混合溶液中滴加1～2滴0.01mol/L AgNO₃溶液，振荡，沉淀呈黄色，说明AgCl的K_sp比AgI的K_sp小

装货单上除应记载与订舱单一致的( )等内容外，还有在货物装上船后由理货人员填写的货物装船的日期、装舱位置、实装货物数量以及理货人员的签名等项内容。

A．托运人名称

B．编号

C．船名

D．目的港

E．货物的详细情况

16V280ZJA的型式是：（）、直接喷射燃烧室、废气涡轮增压器、增压空气中间冷却。

A、单冲程

B、双冲程

C、四冲程

D、八冲程