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【单选题】
直径为d的等截面轴的传递功率如图所示，已知轴的转速为n=10r/s，若材料[τ]=80MPa，则轴的直径应不小于（）【图片】A.
13.1mm
B.
26.2mm
C.
31.5mm
D.
39.3mm
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皮皮学刷刷变学霸
举一反三
【简答题】In 1992, Audrey was _______ by cancer and returned home with her family. But she remained a great woman till the end of her life. Her passion for service is _________.
【单选题】Just a few seconds of frenzied passion on the floor of the public bar and things would never be the same again for Michelle. It only took a few minutes to ruin her life. The end of all her hopes and d...
A.
By thinking of Michelle as her younger sister.
B.
By doing many projects at home.
C.
By working hard at school and at TV studios.
D.
By dating her boyfriend during her school years.
【简答题】真花学说认为被子植物最原始的科是（），假花学说认为被子植物最原始的科是杨柳科。
【单选题】It was also the day she set_______ motion a life passion that has made her a nationally lauded literacy advocate.
A.
on
B.
in
C.
of
D.
off
【单选题】It was also the day she set_______ motion a life passion ______ has made her a nationally lauded literacy advocate.
A.
on...... which
B.
in......that
C.
in......where
D.
to......that
【单选题】下列处理中,能达到灭菌的是哪一项
A.
用0.2％过氧乙酸溶液浸泡手
B.
床垫、毛毯、衣服、书籍暴晒6h
C.
将水煮沸（达100℃）后经5～10min
D.
2％戊二醛溶液浸泡金属器械及内镜10h
E.
用2％碘酊在皮肤上涂擦20s后用70％乙醇脱碘
【简答题】语法填空Dr. Ruit’s passion has attracted lots of attention worldwide. He won many awards 11 a doctor with a commitment to bettering people’s lives. In12 interview. Dr. Ruit explained that he 13 ...
【单选题】Her passion in life is to ( ) , enable, and enrich people in the truth about trust, in business, personal relationships, and society.
A.
endeavor
B.
enroll
C.
enlighten
D.
endow
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