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【单选题】
缺乏( )可引起巨红细胞性贫血A.
维生素B1
B.
叶酸
C.
维生素B6
D.
维生素C
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皮皮学刷刷变学霸
举一反三
【单选题】The main reason for the spreading of the disease isn't so much a fall in living conditions ______a rise in it..
A.
as
B.
like
C.
than
D.
but
【单选题】The chief reason for the population growth isn't so much a rise in birth rates a fall in death rates as a result of improvements in medical care.
A.
but
B.
or
C.
as
D.
and
【简答题】电力网按其功能分为 和 两大部分。
【单选题】He was ______ to speak the truth
A.
too much of a coward
B.
so much a coward
C.
too much a coward
D.
so much of a coward
【单选题】He is ______ to speak the truth.
A.
too much of a coward
B.
too much a coward
C.
so much a coward
D.
so much of a coward
【单选题】在Windows 7资源管理器窗口中,被选中的文件或文件夹会( )
A.
用高亮颜色显示
B.
呈“带蓝色的底纹”显示
C.
会突出显示,显示为蓝色带虚框。
D.
以上说法都对
【单选题】在Windows 7的“资源管理器”窗口中,当选定了文件或文件夹后,下列( )操作删除的文件或文件夹不能被恢复。
A.
按Delete键
B.
用鼠标左键直接将它们拖动到桌面上的“回收站”图标中
C.
按Shift + Delete组合键
D.
用“文件”菜单中的“删除”命令
【单选题】输入两个正整数m和n,求其最大公约数和最小公倍数。请为空格处选择正确语句 #include "iostream.h" void main() { int m,n,t,x,y; cin>>m>>n; x=m; y=n; if(x
A.
t==0
B.
t!=0
C.
t=0
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