消防给水如何分类？

根据运算律，在横线里填上适当的数或字母．

45×______=36×______

（60×25）×______=60×（______×4）

（a+b）×15=a×______+______×______

m×118-m×18=______×（______-______）

125×（______×a）=（______×8）×______．

(268 words)

小题1:According to Warranty Limitations, a product can be under warranty if __________.

A. shipped from a Canadian factory                   B. rented for home use

C. repaired by the user himself                          D. used in the U.S.A.

小题2:According to Owner’s Responsibilities, an owner has to pay for __________.

A．the loss of the sales receipt

B．a servicer’s overtime work

C．the product installation

D．a mechanic’s transportation小题3:Which of the following is true according to the warranty?

A．Consequential damages are excluded across America.

B．A product damaged in a natural disaster is covered by the warranty.

C．A faulty cabinet due to rust can be replaced free in the second year.

D．Free repair is available for a product used improperly in the first year.

论述煤样的包装。

割裂感性认识和理性认识的辩证统一，会导致( )。

A．唯物主义决定论

B．经验论

C．相对主义诡辩论

D．唯理论

我国提出建立医院伦理委员会的主张是哪一年代（）。

A.20世纪20年代

B.20世纪60年代

C.20世纪80年代

D.20世纪90年代

E.21世纪初