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【单选题】
关于免疫金银染色的描述,错误的是A.
敏感度较单纯免疫金染色高
B.
多用于组织化学检测
C.
利用金颗粒对银离子的还原性
D.
具有定位精确的优点
E.
阳性结果为橘红色颗粒沉积
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反馈参考答案：
举一反三
【单选题】自定义异常时,可以通过对下列哪一项进行继承?( )
A.
Error
B.
AWTError
C.
VirtualMachineError
D.
Exception及其子类
【单选题】To be courteous, you should not be ( ).
A.
bad-natured
B.
tactful
C.
thoughtful
D.
appreciative
【单选题】How can you be courteous to women?
A.
Treat women with respect.
B.
Be respectful to women in your actions.
C.
Be respectful to women as you part ways in the evenings.
D.
All of the three.
【简答题】Your company will be judged by the way you answer the telephone, so it is very important that you be courteous, happy, and ever so willing to help in the first contact you make with the caller.
【简答题】STEP 4 Be courteous by 4) . Your host may love to wait on you, but offering to 5) , do the dishes or take out the trash might be a pleasant change of pace for them.
【单选题】设A={0，1，2，4，5，7}，B={1，4，6，8，9}，C={4，7，9}，则（A∩B） （A∩C）=（ ）
A.
{1，4}
B.
{1，7}
C.
{4，7}
D.
{1，4，7}
【单选题】To be courteous when writing a letter you should ______.
A.
respond as early as possible
B.
point out the mistakes your reader has made
C.
use an indirect approach
D.
use correct language
相关题目：
【单选题】To be courteous, you should not be ( ).
A.
bad-natured
B.
tactful
C.
thoughtful
D.
appreciative
【单选题】设A={0，1，2，4，5，7}，B={1，4，6，8，9}，C={4，7，9}，则（A∩B） （A∩C）=（ ）
A.
{1，4}
B.
{1，7}
C.
{4，7}
D.
{1，4，7}
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