例句與造句

1. Jobe JB, Smith DM, Ball K, Tennstedt SL, Marsiske M, Willis SL, Rebok GW, Morris JN, Helmers KF, Leveck MD, Kleinman K . Control Clin Trials . 2001 Aug; 22 ( 4 ) : 453-79 . ( Abstract ) states that cognitive training interventions ( memory, reasoning, and speed of information processing ), have previously been found to be successful at improving mental abilities under laboratory or small-scale field conditions.
2. It's difficult to find control clin trials in a sentence. 用control clin trials造句挺難的