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【单选题】
关于杆菌病原学的特征，不正确的是（）A.
革兰染色阴性
B.
是多形球杆菌
C.
无鞭毛与芽胞
D.
可形成荚膜
E.
细菌释放的外毒素为主要致病因素
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举一反三
【单选题】Only after I had known him for some time______to appreciate his real worth.
A.
do I begin
B.
did I begin
C.
I began
D.
had I begun
【单选题】______I’d have told you. [ ]
A.
If I would have known it
B.
Had I known it
C.
If I had have known it
D.
should I know it
【单选题】If I ____ more about diamond, I ____ cheated by that man.
A.
had known, would not be
B.
had known; wouldn’t have been
C.
knew; would not have been
D.
had known; would never be
【单选题】用色彩调整图层单独对某一个图层进行色彩调整时,应该:
A.
建立所需的色彩 调 整图层即可
B.
选中图层，用图像菜单的调整命令调整
C.
建立所需的色彩调整图层 ，并创建剪贴蒙版
D.
用图像菜单的调整命令调整，并创建剪贴蒙版
【单选题】______, I'd have told you. [ ]
A.
If I would have known it
B.
If I had have known it
C.
Had I known it
D.
Should I know it
【单选题】选择正确的处理步骤：( )当检索返回的网页较少或着没有匹配的信息时，可按照下面方法进一步处理：①换一种搜索工具试一下，每种搜索工具的检索方式和所拥有资料的侧重点不同。②检查关键词的拼写是否有误，关键词组合是否有自相矛盾的地方。③将用某些关键词用更常见的同义词替代后重新进行搜索。
A.
①②③
B.
②③①
C.
③②①
D.
③①②
【单选题】If only I __ how to operate a computer as you do.
A.
had known
B.
would know
C.
should know
D.
knew
【单选题】______ I’ve told you.
A.
If I would have known it
B.
If I had have known it
C.
Had I known it
D.
Should I known it
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