11. Talks between top officials of the Organization of Petroleum Exporting Countries and Russian government officials caused some choppiness in prices. 12. "There is some choppiness you have to be able to weather as an investor, " he said. 13. Analysts say we should expect more choppiness in the market as investors search amid the recent declines for bargain-priced stocks. 14. Some of the choppiness followed dozens of warnings from computer-related companies that second-quarter earnings would fall short of expectations. 15. The company has developed a synchronized multimedia file format to deal with the choppiness and poor quality found in most internet multimedia files. 16. Unlike current video on a PC, Intertainer's image is full-screen, with none of the typical Internet choppiness . 17. Until companies can say that business is picking up, analysts say the market remains vulnerable and that trading will continue its choppiness . 18. The editing tends toward choppiness , particularly in the film's abrupt flash-forward to round out Charles'later years. 19. Writings in secular genres was also popular . " These adjacent short sentences in the lead paragraph may increase the appearance of choppiness . 20. Apart from outright incoherence, choppiness , or long-windedness, perhaps the most common flaw in paragraph construction is rigidity of presentation.