发审委委员审核股票发行申请文件时，有()情形之一的，应及时提出回避。

A．ISDN

B． DSL

C． Satellite

D． Cable

A．ISDN

B．PSTN

C．OC-2

D．T1

A．Impact

B． Thermal

C． Laser

D． Inkjet

A．100Base-T4

B．100Base-TX

C．100Base-X

D．100Base-FX

A. Wide-Ultra2 SCSI-3

B. High-Voltage Differential

C. Low-Voltage Differential

D. Fibre Channel

valuating WAN technologies to interconnect the regional offices to corporate headquarters. Each of the regional offices should be connected to the corporate headquarters in a hub and spoke arrangement using a packet-switched technology.Which of the following WAN technologies will fulfill these requirements？（）

A. Frame Relay

B. ISDN

C. T1 leased lines

D. Wireless

Which of the following is NOT mentioned as the uses of textile fibers？

A．In the creation of home furnishings.

B．In building blocks.

C．In building trades.

D．In transportation.

Which of the following is NOT mentioned as the uses of textile fibers？

A．In the creation of home furnishings.

B．In building blocks.

C．In building trades.

D．In transportation.

Which of the following is NOT suggested in the last paragraph？

A．People may not see the significance of certain new technologies immediately after they appear.

B．It may take several years for people to realise the impact of new technologies on our culture.

C．New technologies are likely to make it difficult to preserve valuable information.

D．New technologies will enable us to have access to more valuable information.

The author uses which of the following in presenting his argument？

A．animadversion

B．metaphor

C．irony

D．digression

E．experimental evidence