皮皮学，免费搜题
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搜题
【单选题】
螺栓断在，可用直径比螺纹小径小（）的钻头将螺栓钻去再用丝锥攻出内螺纹。A.
0.5-1mm
B.
1-1.5mm
C.
2mm
D.
2mm以上
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皮皮学刷刷变学霸
举一反三
【单选题】. ——Who are you going to have this letter for you? —— My secretary.
A.
type
B.
typed
C.
been typed
D.
been typing
【简答题】工具用于调整图像饱和度。
【简答题】When you have a cold, a headache, a cough, or you can’ go to sleep, who are you going to ask for help ? Perhaps your answer is to go to the doctor for help, or to get some medicine from the drugstore....
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