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【单选题】
● Linux 系统中,下列关于文件管理命令 cp与 mv说法正确的是 (32) 。 (32)
A.
没有区别
B.
mv操作不增加文件个数
C.
cp操作不增加文件个数
D.
mv操作不删除原有文件
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参考答案:
举一反三
【单选题】下列哪一项不是细胞体外培养的必需条件( )
A.
无菌
B.
37℃
C.
pH7.2
D.
30%双氧水
E.
含血清培养液
【单选题】决策树法最适合下列哪种类型的决策( )
A.
确定型决策
B.
非确定型决策
C.
风险型决策
D.
战略决策
【单选题】x、y和z被定义为int型变量,若从键盘给x、y和z输入数据,正确的输入语句是 ( )
A.
INPUTx、y,z;
B.
scan{('%d%d%d',& x &y &z);
C.
scanf('%d%d%d',x,y,z);
D.
read('%d%d%d',&x&y&z);
【判断题】If a first complaint letter does not bring action, we should assume a much stronger one with threat of legal action.
A.
正确
B.
错误
【判断题】If there is a complaint from passengers, flight attendants should first say sorry and then deal with it.
A.
正确
B.
错误
【单选题】When I (got to) the cinema, the film (had already started) I (ought to get) there (earlier).
A.
got to
B.
had already started
C.
ought to get
D.
earlier
【单选题】When I (got to) the cinema, the film (had already started); I (ought to) get there (earlier).
A.
got to
B.
had already started
C.
ought to
D.
earlier
【简答题】If you receive notice that you are facing a discrimination complaint, your first inclination may beto react instantaneously to make the problem go away.
【单选题】If you receive notice that you are facing a discrimination complaint, your first inclination may be to react instantaneously to make the problem go away.
A.
tendency
B.
interest
C.
aim
D.
problem
【多选题】标准化的意义在于 。
A.
是现代化大生产的重要手段
B.
是科学管理的基础
C.
是产品设计的基本要求
D.
是计量工作的前提
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