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【单选题】
零件图里对外螺纹的大径规定画法是（）。A.
牙顶及螺纹终止线用粗实线表示
B.
牙顶及螺纹终止线用细实线表示
C.
牙顶及螺纹终止线用点划线表示
D.
牙顶及螺纹终止线用虚线表示
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反馈参考答案：
举一反三
【简答题】One night this summer, on my way home from work I decided to see a movie. I knew the theatre would be air conditioned and I couldn’t face my 36 apartment. Sitting in the theatre I had to 37 the openi...
【简答题】抑制钙吸收的因素有哪些?
【单选题】One summer night, on my way home from work I decided to see a movie. I knew the theatre would be air-conditioned and I couldn't face my【56】apartment. Sitting in the theatre I had to look through the【5...
A.
hot
B.
warm
C.
cool
D.
heated
【简答题】简述煤炭的装卸搬运作业过程。
【单选题】Mameini曲线适用于
A.
小分子抗原,长时间扩散(48h)
B.
小分子抗原,短时间扩散(25h)
C.
大分子抗原,长时间扩散(48h)
D.
大分子抗原,短时间扩散(25h)
E.
不论分子大小
【单选题】One summer night, on my way home from work I decided to see a movie. I knew the theatre would be air-conditioned and I couldn't face my【21】apartment. Sitting in the theatre I had to look through the【2...
A.
warm
B.
hot
C.
heated
D.
cool
【简答题】One spring, when I was 10, during one of my father's layoffs, I could tell my mother was dispiriteD．I decided to cheer her up by buying her a special Mother's Day gift． One day after school I rode my ...
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