在其他属性不变的条件下，债券的息票率越低( )。A．债券价格随预期收益率波动的幅度

This term, I came to Chou Zhou Middle School. There are 42 classes, 110 teachers and 2400 students in the school.

In the middle of the school there is two tall buildings. They are for us to have classes. All the classrooms are there. There are some small rooms, too. They are offices for the teachers to work. All the teachers get ready for their lessons there.

In front of the tall buildings, there is a small one. It is the library. There are many books there. The teachers and the students like to read books in it. Sometimes they borrow(借) books from it.

There is a sports hall behind the tall buildings. The boys often play basketball there happily. Of course, there is a science building in my school.

This is my school. It’s not only big, but also nice. I like my new school very much.

小题1:There are ________ classes in Chou Zhou Middle School.

A．20

B．42

C．23

D．24小题2:The classrooms are in the __________.

A．tall buildings

B．sports hall

C．library

D．office小题3:How many buildings are there in the school ?

A. 5               B. 4              C, 3             D. 6

小题4:The students can borrow books from the ___________.

A．library

B．offices

C．classrooms

D．schools小题5:Where is the two tall buildings in the school ?

A．They are in front of the library.

B．They are behind the sports hall.

C．They are between the library and the sports hall.

D．They are behind the on the left of the science building.

下列状态的物质，既能导电又属于电解质的是 [ ]

A．MgCl₂晶体

B．NaCl溶液

C．液态氯化氢

D．熔融的KOH

患者局部外伤感染后于全身出现红斑、丘疹、水疱，糜烂，伴有瘙痒，局部淋巴结肿大，要考虑（）。

A.湿疹

B.脓疱疮

C.异位性皮炎

D.淤积性皮炎

E.自身敏感性皮炎

企业确定物流服务水平的方法

建设单位或承包单位提出的工程变更应提交（），由总监理工程师组织专业监理工程师审查。

A．设计单位

B．监理单位

C．总监理工程师

D．建设单位