“1*3” reuse, radio frequency hopping and 50% load will result in the following gain:（

() reuse mode is recommended for baseband frequency hopping, while ()for radio frequency hopping.

A.1X3

B.3X3

C.4X3

D.Any of above

OOP languages that create objects, such as(1)and(2)are beginning to take hold as viable tools for programmers. To effectively reuse objects, programmers need a place to store them such as an ODBMS or a RDBMS with object oriented extensions.Databases that handle object data not only let user store and retrieve(3)data, but also let them store objects created by OOP languages, to facilitate rapid software development and reuse, and let them(4)new multimedia applications combining multiple data types.RDBMS vendors have developed new extensions to existing DB technology to accommodate the most common forms of(5)data.

A．C++

B．BASIC

C．PASCAL

D．C

A.4*3

B.7*3

C.1*3

D.MRP

PASSAGE 1 (教材课文原文)

"The printer did not always manage to spread the plastic evenly, making some of the ribs of the honeycomb structure of the block uneven," reported ARN (Australian Radio Network) to the surprise of no one who has used a 3D printer. But the architects remain optimistic. The first few printed blocks are meant to be test pieces as they improve the process.

It takes about a week to print a 3-meter high block right now. The project's leaders hope to eventually get that down to two hours and finish the first of 12 rooms in a year, and the entire house in less than 3 years.

Ultimately, 3D Print Canal House is an architectural research project, one that is very much being conducted in the public eye: you can actually buy tickets to visit the construction site for 2.50 Euros.

The top floors will become more ornate, for example, as newer techniques are incorporated. They'll explore the possibilities of 3D printing, like the honeycomb walls or an entire room recycled, redesigned, and built anew. Nobody's going to move into a 3D printed house soon, but, if anyone ever does, something might be learned from this experiment by the canal.

1. According to the passage, the 3D printer can type with plastic evenly.{T; F}

2. This 3D printer printed some blocks to test its work.{T; F}

3. The project's leaders will finish the entire house in less than 3 years.{T; F}

4. 3D Print Canal House is printed to live.{T; F}

5. The canal house will be decorated more.{T; F}

A.1

B.2

C.3

D.4

A.Romantic、Recycle、Reuse

B.Red、Recycle、Reuse

C.Reduce、Recycle、Reuse

D.Research、Recycle、Reuse

A.Romantic、Recycle、Reuse

B.Red、Recycle、Reuse

C.Reduce、Recycle、Reuse

D.Research、Recycle、Reuse

A.reduce

B.recycle

C.reuse

D.refuse

A.reduce

B.recycle

C.reuse

D.refuse