(1).()薄片 (2).()厚片 (3).()斜片 (4).()直片
A.1-2mm
B.2-4mm
C.2-3mm
D.0.5mm以下
参考答案:A,B,B,B
Thanks for _____ care of my dog when I was away. [ ]
A. take
B. took
C. taking
D. takes
慢性胃炎(chronicgastritis)