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【单选题】
下面哪句话是错误的?
A.
JPG/JPEG格式通过牺牲图像质量而换取更小的文件体积。
B.
PNG格式和GIF都支持透明度
C.
GIF格式具有256种颜色。
D.
PNG格式的压缩算法不影响图像质量。
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举一反三
【单选题】The correct description of the regulation characteristics of key enzymes is
A.
A ll of them are the enzymes that catalyze intermediate reactions of metabolisms .
B.
T hey have higher catalytic activities in enzyme systems .
C.
T he regulation of the enzyme activity does not affect the metabolic rate of the whole system .
D.
A ll reactions catalyzed by key enzymes are reversible.
【单选题】The time-domain characteristics of a D-T LTI system is mainly determined by ( ) distribution of the system's transfer function.
A.
zeros
B.
poles
C.
zeros and polse
D.
None of above
【简答题】取油样、测试油的污染度和含水量一般在 保养中进行。
【单选题】I don ’ t think there are several characteristics of the novel special attention .
A.
worthwile
B.
worth of
C.
worthy of
D.
worthless
【单选题】Which of the following words CANNOT describe the characteristics of the Wiwa?
A.
Natural.
B.
Traditional.
C.
Fascinating.
D.
Barbaric.
【判断题】亚里士多德认为强迫的专制制度很快就会腐化堕落。()
A.
正确
B.
错误
【多选题】医药职业者要做到乐于职业,主要是要做好( )
A.
树立科学进步的人生观
B.
严格遵守法律法规
C.
树立远大的理想
D.
根据医药职业的需要服从工作安排
【单选题】The characteristics of slake reaction of quicklime are ()
A.
Releasing large amount of heat and great volume expan sion
B.
Absorb ing large amount of heat and great volume expan sion .
C.
Releas ing large amount of heat and great volume shrinkage
D.
Absorb ing large amount of hea t and great volume shrinkage
【多选题】医药职业者要 做 到乐于职业,主要是要做好以下几个方面( )
A.
以主人翁态度对待本职工作
B.
树立科学进步的人生观
C.
树立远大的理想
D.
根据医药职业的需要服从工作安排
【单选题】如图所示,一光滑宽阔的斜面,倾角为 θ,高为h,现有一小球在A处以水平速度v 0 射出,最后从 B处离开斜面,下面说法中不正确的是
A.
小球的运动轨迹为抛物线
B.
小球的加速度为 gtanθ
C.
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