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【单选题】
服务的最根本的特征是（）。A.
不可储存性
B.
差异性
C.
不可分离性
D.
无形性
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皮皮学刷刷变学霸
举一反三
【单选题】During the war she always kept a ____ of tinned food in the house. prefix="o" ns="urn:schemas-microsoft-com:office:office" ?xml:namespace>
A.
load
B.
substitute
C.
conservation
D.
reserve
【单选题】During the war, she went to the frontline to ___ the wounded.
A.
look for
B.
take care
C.
look after
D.
look at
【单选题】During the war, she always kept a _______ of tinned food in the house.
A.
reserve
B.
reverse
C.
preserve
D.
persevere
【单选题】During the war she always kept a _______ of tinned food in the house.
A.
reverse
B.
reserve
C.
preserve
D.
perservere
【单选题】单击窗体时，下列程序的执行结果是 Private Sub Invert（ByVal xstr As String, ystr As String） Dim tempstr As String Dim I As Integer I=Len（xstr） Do While I >=1 tempstr=tempstr + Mid（xstr, I, 1） I=I - 1 Loop ystr=tempstr ...
A.
abcdef
B.
afbecd
C.
fedcba
D.
defabc
【单选题】保护接零是指低压配电系统中将电气设备( )部分与供电变压器的零线(三相四线制供电系统中的零干线)直接相连接。
A.
内部可导电
B.
外露可导电
C.
金属外壳
D.
中性线
【单选题】During the war, she always kept a _______ of tinned food in the house.
A.
reverse
B.
reserve
C.
preserve
D.
persevere
【单选题】During the war she always kept a（）of tinned food in the house.
A.
load
B.
substitute
C.
conservation
D.
reserve
【单选题】She said her family ()themselves() the army during the war.
A.
has hidden, from
B.
had hidden, from
C.
has hidden, with
D.
had hidden, with
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