男性,57岁,行胃大部切除术。手术后发生口角炎、周围神经炎等,提示膳食中缺乏()。
A.蛋白质
B.膳食纤维
C.维生素A
D.锌
E.B族维生素
参考答案:E
Directions:
The graphs below show the types of music albums purchased by people in Britain according to sex and age.
Write a report for a university lecturer describing the information shown below. You should write about 160-200 words neatly on ANSWER SHEET2.
以下关于图像剪裁边界说法错误的是()?
A.使用矩形作为剪裁边界,绘制的矩形始终与图形的边平行
B.剪裁边界只能有一个
C.删除和关闭剪裁边界都会显示整个图像
D.如果关闭剪裁后又重新剪裁图像,剪裁将自动关闭