皮皮学，免费搜题
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搜题
【单选题】
绝对性红细胞增多见于（）A.
糖尿病酮症酸中毒
B.
腹泻
C.
慢性肾上腺功能减退
D.
严重慢性心肺疾病
E.
大面积烧伤
拍照语音搜题，微信中搜索"皮皮学"使用
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皮皮学刷刷变学霸
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【单选题】选出句子中的谓语: We had better go to school earlier.
A.
we
B.
h ad better to
C.
t o school
D.
e arlier
【单选题】数字视频信息的数据量相当大,必须对数字视频信息进行压缩编码才适合于存储和传输。下面关于数字视频压缩编码的叙述中,不正确的是( ) 。
A.
DVD 光盘上存储的视频信息采用的是 MPEG-2 压缩编码标准
B.
数字视频文件一般都是有损压缩文件。
C.
JPEG 是一种数字视频压缩编码标准
D.
MPEG 是一种数字视频压缩编码标准
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相关题目：
【单选题】选出句子中的谓语: We had better go to school earlier.
A.
we
B.
h ad better to
C.
t o school
D.
e arlier