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【判断题】
Wilcoxon 秩和检验由于相对较为保守,所以对识别真正差异表达的基因有时不够灵敏。A.
正确
B.
错误
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举一反三
【单选题】He wanted to make sure __________.
A.
how we went there by bus
B.
where did we go
C.
what did we go there
D.
when we went there
【简答题】A．He wanted to work with his friend. B．He wanted to go to Spain. C．He was rejected by the engineering firm he had applied to. D．He enjoyed traveling around the world.
【简答题】A．He hated spiders. B．He wanted to do some research on the web. C．He just wanted to while away the time. D．He wanted to catch the spider.
【单选题】设 ABC 表有三列 A 、 B 、 C ,并且都是整数类型,则以下( )查询语句能够按照 B 列进行分组,并在每一组中取 C 的平均值。
A.
SELECT AVG （C）FROM ABC
B.
SELECT AVG （C）FROM ABC ORDER BY B
C.
SELECT AVG （C）FROM ABC GROUP BY B
D.
SELECT AVG （C）FROM ABC GROUP BY C,B
【单选题】He wanted to measure temperatures. He wanted to _____ them.
A.
count
B.
make
C.
do
D.
take
【简答题】A．He wanted the railroad to be successful. B．He wanted to have a more powerful steam engine. C．He wanted to own the land near the railroad. D．He wanted to build his own railroads.
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