2019年mba考试英语模拟题——名词298

{01}Yang Liwei，China’s first spaceman，prepared carefully for going to space so that he could be sure of success at his first _________. A.experiment B.flight C.attempt D.try 解析：at the first attempt意为“第一次尝试”。
本题选C。
{02}Scientists have found no ________of life on Mars so far,though great efforts have made on the research. A.symbols B.signs C.marks D.signals 解析：signs 迹象；symbols 象征；marks 标志；signals 信号。
本题选B。