在Photoshop中,Alpha通道最主要的用途是()。
A.保存图像色彩信息
B.保存图像未修改前的状态
C.用来存储和建立选择范围
D.是为路径提供的通道
参考答案:A
No sooner ________ themselves in their seats in the theatre _______ the curtain went up.
A.they have settled; before
B.had they settled; than
C.have they settled; when
D.they had settled; than
患者,男,25岁。发热l天,右下腹痛,拒按,大便三日未行,舌质红,舌苔黄,脉滑数。用药宜首选()
A.桃仁、薏苡仁
B.红藤、薏苡仁
C.大黄、牡丹皮
D.牡丹皮、赤芍
E.大黄、枳实