显著的变化
7.The most obvious change since the 2001 attacks has been the added rigmarole at American airports.
8.During the late summer of 1979, massive changes occurred in the distribution of temperature over Eurasia north of 15°N.
9.Those were the only downward changes that were statistically significant, according to CDW.
10.Although there is no linear relationship between fluxes of NH_3 emission during the whole process of MSG production and pH values in discharged solution, it is significantly related with fluxes of NH_3 emission during the process of sewage treatment.

