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【单选题】
矩形截面受力如图( a )所示,横截面上各点的应力状态如图( b )所示。关于它们的正确性,现有四种答案,正确答案是( )。A.
点1、2的应力状态是正确的
B.
点2、3的应力状态是正确的
C.
点3、4的应力状态是正确的
D.
点1、5的应力状态是正确的
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【简答题】Vacations were once the prerogative of the privileged few, even as late as the 19th century. Now they are considered the right of all, except for such unfotrunate masses as, for example, the bulk of p...
【单选题】Britain's east midlands were once the picture of English countryside, alive with flocks, shepherds, skylarks and buttercups the stuff of fairytales. In 1941 George Marsh left school at the age of 14 t...
A.
cherishes his adolescence memories.
B.
thinks highly of the efficiency of agriculture.
C.
may not have happy memories of past time.
D.
cannot remember his adolescence days.
【单选题】Britain's east midlands were once the picture of English countryside, alive with flocks, shepherds, skylarks and buttercups—the stuff of fairytales. In 1941 George Marsh left school at the age of 14 t...
A.
cherishes his adolescence memories.
B.
thinks highly of the efficiency of agriculture.
C.
may not have happy memories of past time.
D.
cannot remember his adolescence days.
【单选题】Inconspicuous Consumption Products and services that were once the preserve of a very wealthy few—from designer handbags to fast cars, bespoke tailoring and domestic servants—are increasingly becoming...
A.
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More people can afford servants.
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People are becoming less concerned with what other people buy.
【单选题】Cox-2 inhibitors were once banned from the market because they were found to increase the risk of triggering ______.
A.
colon cancer
B.
stomach problems
C.
heart disease
D.
genetic problems
【单选题】Britain's east midlands were once the picture of English countryside, alive With flocks, shepherds, skylarks and buttercups--the stuff of fairytales. In 1941 George Marsh left school at the age of 14 ...
A.
cherishes his adolescence memories.
B.
thinks highly of the efficiency of agriculture.
C.
may not have happy memories of past time.
D.
cannot remember his adolescence days.
【单选题】Britain's east midlands were once the picture of English countryside, alive with flocks, shepherds, skylarks and buttercups—the stuff of fairytales. In 1941 George Marsh left school at the age of 14 t...
A.
cherishes his adolescence memories.
B.
thinks highly of the efficiency of agriculture.
C.
may not have happy memories of past time.
D.
cannot remember his adolescence days.
【简答题】Besides Stroke Mandeville，surely the s for the disabled were once held in
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