Roach Motel’s cost function based on guest-days of occupancy for custodial cost is given as: Y = $60,000 + $5.50X. Roach Motel expects an occupancy level of 10,000 guest days. Roach Motel’s expected total variable cost is: A: a. $5.50 B: b. $55,000 C: c. $60,000 D: d. $115,000

鳕鱼的英文是（）。 A: Salmon B: Roach C: Haddock D: Anchovy

The following description appeared in a press release about a scientific study: The wires attached to the antennae serve as electronic reins, injecting small charges into the roach’s neural tissue. Later, a student wrote in his/her essay about the research: They attached one side of the electrodes (5cm long stainless steel coated with 250um thick Teflon) to the antennas to serve as electronic reins, injecting small charges into the roach’s neural tissue. Does this constitute plagiarism?

下列哪种工具适用于集群级数据备份和恢复（前提条件集群规模一致），主要用于双集群的容灾备份（）。 A: Gsql B: GDS C: Roach D: ETL

The author mentioned a 14-year-old boy in paragraph 3 to show ______. A: the boy died in an electric chair B: Roach was not the first minor criminal executed in South Carolina C: the boy committed a crime D: the boy was 14 years old when he died