多项选择题

以下哪点是对成角透视的描述？

A.有两个消失点
B.物体的上下两个面与地面平行
C.只有一个消失点
D.灭点的位置是根据物体与视点的距离来定

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单项选择题

患者女，50岁。确认为胃溃疡活动期，其最可能的腹痛特点是 A.
夜间腹痛明显 B.
空腹时腹痛明显 C.
餐后1/2~1小时腹痛明显 D.
餐后即刻腹痛明显 E.
进餐时腹痛明显

Complete the statements with words from the Word Bank below. Fill in each blank with only one word.
Word Bank
detailed structured relationship delivery formal interactive informal teacher transmitter attractive within distance
out-directed closeness informative persuasive
Presentation requires more _____ language. There is no place for slang, jargon or bad grammar.

答案： formal