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【单选题】
在Excel 2003中，单元格地址表示M$10属于______。A.
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B.
绝对引用
C.
列绝对行相对的混合引用
D.
列相对行绝对的混合引用
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【单选题】You are asked to identify a sample of bacteria under the microscope as either Streptococcal bacteria or Staphylococcal bacteria. Which of the following observations would lead you to identify the bact...
A.
Pleomorphic shaped bacteria that are not in chains
B.
Rod shaped bacteria that are not in chains
C.
Rod shaped bacteria in long chain formations
D.
Round shaped bacteria in square formations
E.
Round shaped bacteria in chain formations
【单选题】Why are bacteria being used in the research study at the university?
A.
Bacteria have unusual cell formations.
B.
Bacteria live harmlessly on the skin.
C.
Bacteria are similar to other life forms.
D.
Bacteria cause many diseases in humans.
【单选题】Gram-negative bacteria differ from gram-positive bacteria because of the fact ( ).
A.
That in Gram-negative bacteria the peptidoglycan cell wall is only 1 or 2 layers thick, whereas in gram-positive bacteria it is many layers thick.
B.
That in gram-negative bacteria basic dyes and detergents are much more harmful than for gram-positive bacteria.
C.
That in gram-negative bacteria lipoprotein—which is not found in gram-negative bacteria—anchors the outer membrane to the capsule.
D.
That in gram-positive bacteria porin proteins are invariably found, and are not found in gram-negative bacteia.
E.
All of the above are ture.
【单选题】The author implies that bacteria were investigated earlier than viruses because
A.
bacteria are easier to detect.
B.
bacteria are harder to eradicate.
C.
viruses are extremely poisonous.
D.
viruses are found only in hot climates.
【简答题】顶级容器JFrame的布局管理器默认为 ,中间容器JPanel的布局管理器默认为 。
【简答题】A．The bacteria would be killed by the human immune system. B．The bacteria would die if brought to the suce. C．Many antidotes and remedies are available. D．Drilling operations are always closely mon...
【简答题】A．Bacteria can help control some pollution problems. B．Bacteria can eat gasoline in the sea. C．Bacteria can excrete (排泄) hydrogen and oxygen. D．He thought bacteria just caused illness.
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