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【单选题】
ASAP, which is often heard in business office, means _______.
A.
the work must be finished by close of business
B.
the work must be finished by the end of the workday
C.
the work must be finished as soon as possible
D.
the work must be finished at once
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【单选题】Which one of the following is NOT true according to paragraph 2?
A.
The reasons leading to flood is discussed in this paragraph.
B.
Less deaths are caused by floods in the last few decades.
C.
Better warning systems helped in reducing the life losses in floods.
D.
The improvement of technologies greatly reduce the economic losses caused by floods.
【单选题】溶液[H+]≥0.24mol/L时,不能生成硫化物沉淀的离子是( )。
A.
Pb²+
B.
Cu²+
C.
Cd²+
D.
Zn²+
【多选题】血标本的抗原检测常用
A.
免疫荧光法
B.
酶免疫测定
C.
间接血凝试验和胶乳凝集试验
D.
对流免疫电泳
【判断题】Determine whether the following statements are true or false. Put a “T” if the statement is true, and put an “F” if the statement is false. One of the reasons for the English to revolt under the Saxon...
A.
正确
B.
错误
【单选题】One of the reasons why more youths go to college is that they don't have better choices.
A.
T
B.
F
【单选题】The secretary, Mary, is much _______ than her manager, Bert. But the engineer who is standing in the middle is the _______.
A.
slim; tall
B.
more slim; more tall
C.
slimmer; tallest
D.
slimer; taller
【单选题】在Excel中A1、A2、B1、B2单元格的值分别为1 、2 、3 、4 ,选择A1:B2区域后输入数字5,则结果为____。
A.
只有A1单元格值为5
B.
所选单元格值全为5
C.
所选单元格值都不变
D.
出现错误
【单选题】当多股接地线与汇流排连接时,必须加装( )。
A.
接地体
B.
保安器
C.
熔断器
D.
接线端子
【多选题】数据加密的作用在于解决( )
A.
黑客侵入网络后盗窃数据的问题
B.
黑客非法入侵内部网络的问题
C.
黑客侵入网络后修改数据的问题
D.
黑客对内部系统发起网络攻击的问题
【单选题】在Excel 2010中,输入计算公式时必须注意线性书写,已知A1,A2,A3中都有数值数据, 那么数学公式 在A4单元格中输入为( )
A.
=(-A1+SQRT(A2^2+4*A2*A3))/A2*A3
B.
=-(A1)+SQRT(A2^2+4*A2*A3)/(A2*A3)
C.
=(-A1+SQRT(A2^2+4*A2*A3))/(A2*A3)
D.
=-A1+SQRTA2^2+4*A2*A3/A2*A3
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