“炒软兜”在烫杀鳝鱼时，放醋的目的是使鳝鱼（）
A.易去粘液
B.色泽亮黑
C.肉质紧
D.增加酸味
参考答案：B
Do you believe _______ boy can do _______ work in a very short time ? [ ]
A. so little, such much
B. such a little, so much
C. so a little, so many
D. such a few, such a
诊断十二指肠溃疡的可靠X线征象是（）
A.球部变形
B.球部激惹
C.球部压痛
D.球部浓钡影
E.球部狭窄梗阻
