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【单选题】
为了区分多态中同名的不同方法,要求
A.
采用不同的参数列表
B.
返回值类型不同
C.
调用时用对象名做前缀
D.
参数名不同
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【单选题】高压电缆的保护层从外至内,第二层为
A.
绝缘护套
B.
钢铠
C.
内护套
D.
填充层
【单选题】某双链DNA纯样品含有15%的A,则该样品中G的含量是( )
A.
35%
B.
15%
C.
计算不出来
D.
30%
【单选题】This method was so easy and _______ so reasonable.
A.
in a way
B.
in the way
C.
in this way
D.
by the way
【简答题】A.It has several scratches in it. B.It can't be opened in a normal way. C.The door handle is missing. D.It can't be opened at all.
【单选题】Astronauts are likely to increase in height while in space.
A.
Y
B.
N
C.
NG
【单选题】The workers' promised wage increase is being ______ while it is examined by the government to see if it is greater than the law allows.
A.
put back
B.
held back
C.
put down
D.
held down
【简答题】With the hospitality(热情好客)so______(character)of these people, they opened their house to over fifty guests.
【简答题】The envelope wasnt sealed, so I opened it and found a card in it, but the inside of the card was empty.
【单选题】下列对PLC软继电器触点的配置情况描述正确的是( )。
A.
只有2对常开和常闭触点供编程时使用
B.
有无数对常开和常闭触点供编程时使用
C.
不同型号的PLC的情况可能不一样
D.
以上说法都不正确
【单选题】下列对PLC软继电器触点的配置情况描述正确的是 。
A.
有无数对常开和常闭触点供编程时使用
B.
只有 2 对常开和常闭触点供编程时使用
C.
不同型号的 PLC 的情况可能不一样
D.
以上说法都不正确
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