甲和乙结婚前，甲送给乙一套房子，婚后这套房子由乙的父母居住，但房产证上户主的名字仍是

下列关于燃烧现象的描述，正确的是（　　）

A．氢气在空气中燃烧发出黄色火焰

B．红磷在空气中燃烧产生大量白雾

C．镁条在空气中燃烧发出耀眼的白光

D．铁丝在氧气中剧烈燃烧生成四氧化三铁

六、Reading comprehension.(阅读理解)20分

A

Air is an odorless(that cannot be smelled;smelless),invisible(that cannot be seen)gas that surrounds the planet earth.It is everywhere on the planet.An “empty” drinking glass and an “empty” room,to give two examples,are not really empty.Each is filled with air.When the glass is filled with water,the water pushes the air out of the glass.

Air,as a gas,has no definite(fixed,particular)shape,but,because it is matter,it takes up space.It is easy to prove that air is something that takes up space.Stuff a dry handkerchief into the bottom of a glass so that it will not fall out when the glass is turned upside-down.Push the upside-down glass,hold it straight into a jar of water till the glass is completely covered.When the glass is taken out of water,the handkerchief will be dry.The air inside the glass took up space and kept the water from coming in.

1.“Stuff a dry handkerchief into…”.The underlined word means.

A.Press tightly     B.Take out          C.Put down     D.Turn fully

2.The writer tells us that _________.

A.the experiment was done in the laboratory

B.the experiment was done outside the room

C.the experiment is easily done

D.the experiment is carried out indoors

3.Which of the following pictures gives us the correct result?

(W—water;A—air;H—handkerchief)

下列不属于银行公司信贷产品的特点是( )。

A．不可分性

B．同质性

C．易模仿性

D．无形性

对批量为2000的某产品，采用AQL=0.65%，检验水平为Ⅱ的一次正常检验方案，最近从第21批开始连续16批检出的不合格品数分别为：1，3，2，1，2，3，1，1，2，1，1，1，1，1，1，3。

分别在( )批开始，检验方案发生了转移。

A．26；34

B．26；35

C．27；34

D．27：35

下列对智能输入输出单元的说法中错误的是（）。

A.智能输入输出单元是用来实现生产过程控制的。

B.智能输入输出单元是一个独立的自治系统。

C.智能输入输出单元必须依赖主机的运行方式，而不能独立运行。

D.智能输入输出单元是通过外部设备接口与可编程序控制器主机的输入输出扩展口相连来实现与主机的通信的。