例句與造句

1. A very important aspect is the definition of " progression " since this generally involves imaging techniques ( plain radiograms, CT scans, MRI, PET scans, ultrasounds ) or other aspects : biochemical progression may be defined on the basis of an increase in a tumor marker ( such as CA125 for epithelial ovarian cancer or PSA for prostate cancer ).
2. It's difficult to find plain radiogram in a sentence. 用plain radiogram造句挺難的