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【单选题】
在剖视图中，内螺纹的大径用细实线表示，小径用粗实线表示，终止线用粗实线表示。不可见螺纹，其大径、小径和终止线( ) 表示。A.
（a）点划线
B.
（b）粗实线
C.
（c）细虚线
D.
（d）细实线
拍照语音搜题，微信中搜索"皮皮学"使用
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皮皮学刷刷变学霸
举一反三
【单选题】What do we know about the Student Leadership Meeting?
A.
It was first held in 2004.
B.
It is held every three years.
C.
lt provides free meals for students.
D.
It invites students from Manhattan.
【简答题】名词解释：金属的力学性能
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【单选题】I met Julia the other day.It was the first time we each other since we graduated from school.
A.
saw
B.
had seen
C.
did see
D.
have seen
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A.
粪便和尿液
B.
水道中的阴液
C.
化生的精血津液
D.
浓厚的营养物质
E.
痰饮等病理产物
【简答题】She is a beautiful red-haired girl. she has been shopping with her mom in Wal-Mart. It was raining hard outside. We all stood there under the awning (雨篷). Her voice was so sweet. “Mom, let’s run throu...
【简答题】解释以下名词:1.金属的力学性能 2. 强度 3. 塑性 4. 硬度 5. 韧性 6. 疲劳强度
【单选题】It was so late that we_________had time to catch the train.
A.
nearly
B.
almost
C.
hardly
D.
simply
【简答题】It was four o'clock when we left Micatlan,and we traveled quickly until it became almost completely dark.It was our intention to return to our general quarters in Atlacomulco that night.We had a long ...
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