Which of the following is true regarding a supply chain? A: Cash flows downstream while materials flow upstream. B: Information flows upstream, downstream, and between network members and external entities. C: An electrical power producer that powers a manufacturer’s plant is downstream from the manufacturer. D: Services may be part of a manufacturing supply chain but do not have a distinct supply chain themselves.

原核生物的启动子由（） A: 核心启动子和上游控制元件（upstream control element）组成 B: -35，-10和转录起点组成 C: 由Fissite和UCE（upstream control element）组成 D: Fissite， UCE（upstream control element）以及 35，-10和转录起点等组成

What do you know about the River Nile A: In order to sail upstream. B: In order to control the flood. C: In order to attract visitors.

It is important to note that from the core company’s perspective， the supply chain includes （）， upstream supplier and down stream customers.

‎The supply chain consists of two major parties. They are ________ partners and _________ partners. ​‎​‎​ A: upstream B: upper-level C: downstream D: lower-level

It is more likely that ___ bear(s) the corporate income tax. A: the corporation B: the entrepreneur C: employees and consumers D: upstream and downstream enterprises

Who will appear in the upstream?A. buyers B. producers C. both buyers and producers D neither A: A B: B C: C D: D

The signal transmission portion of the analog video surveillance system is responsible for the upstream transmission of the video signal and the downstream transmission of the control signal. ( ) A: 正确 B: 错误

.Which of the following applications would require a non bypassing<br/>type filter? () A: Return line filter B: Downstream of any fixed displacement pump C: Upstream of a servo valve D: In a separate filtering and cooling circuit

Some Internet services offer ____ connections, in which data travels upstream from your computer to the Internet at the same speed as data traveling downstream from the Internet to your computer. A: asymmetrical B: symmetrical C: always-on D: voiceband