单项选择题 Now scanners detect discolored spots in sliced potatoes as they ______by on conveyors, and razors automatically chop out the defects – all work that used to be done by hand.

单项选择题 The drug-maker now gathers detailed information on how doctors _____drugs so its sales reps can be far more productive.

单项选择题 The boy asked his mother to _____ him up so that he could look in the window.boothC、 boostD、 booze