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【单选题】
急性白血病和慢性白血病的主要区别是
A.
感染严重程度
B.
出血严重程度
C.
贫血严重程度
D.
白血病细胞成熟程度
E.
肝脾增大程度
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【简答题】安全阀相当于液压系统中的(),它在气压系统中限制回路中的(),以防止管路等破裂及损坏,起()作用。
【多选题】慢性病主要危害:
A.
脾脏
B.
肾脏
C.
心脏
D.
【简答题】活期存款结息日为每年( ) 。
【单选题】What kind of students may NOT like online distance learning?
A.
Those busy with their schedules.
B.
Those in need of further education
C.
Those unable to attend regular classes.
D.
Those in favor of face-to-face teaching.
【简答题】属于狭义相对论基本假设的是:在不同的惯性系中, A.真空中光速不变 B.时间间隔具有相对性 C.物体的质量不变 D.物体的能量与质量成正比
【单选题】All the students were eager to know what the future may have________for them when they graduated from the school. [     ]
A.
in store
B.
in common
C.
in all
D.
in particular
【单选题】What happens to students who miss more than four classes?
A.
They may fail the course.
B.
They may not have to make up the work.
C.
They may have to do additional assignments.
D.
They may not understand the labs.
【多选题】下列关于 GIF 格式的描述正确的有( )。
A.
通过减少文件中的颜色数量可以减小 GIF 图像的大小
B.
GIF 文件的大小与优化设置中的色彩数量没有直接关系
C.
GIF 是一种用 LZW 压缩的格式,目的在于最小化文件大小和电子传输时间
D.
GIF 格式保留索引颜色图像中的透明度,但不支持 Alpha 通道
【单选题】( )是中国北方最大的沿海开放城市。
A.
北京
B.
天津
C.
大连
D.
青岛
【单选题】What may eventually happen with the busing cutbacks?
A.
More students may choose to take public transportation.
B.
The safety of school buses may be decreased sharply.
C.
Competition among bus companies may become fiercer.
D.
There may be an increase in carbon dioxide emissions.
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