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【判断题】
《周礼》是我国现存最早的记载上古礼仪程式的典籍。( )A.
正确
B.
错误
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举一反三
【单选题】Peter found a place in the cellar______ he used as his first laboratory.
A.
which
B.
where
C.
such
D.
the same
【单选题】According to Judith Reisman, what was wrong with Kinsey's methods?
A.
Kinsey used unusual subjects in his research.
B.
Kinsey's sample represented average people.
C.
Kinsey made errors in data analysis.
D.
Kinsey's findings were useless.
【单选题】Which of the following nondestructive testing methods can be used to detect a suspected subsurface defect in a tail-shaft liner?
A.
Dye penetrant
B.
Magnetic particle
C.
Ultrasonic
D.
All of the above
【简答题】图 4是根尖的四种细胞,请仔细观察它们的结构特点,回答下列问题。 (1)A图表示的是______区的细胞,此细胞已经停止_______。 (2)B图表示的是______区的细胞,此细胞具有_______能力。 (3)图D带有根毛,则D图表示的是根的________区。 (4)图C具有保护作用。根据所学根尖结构的知识,分析图4可知,A—D所示的细胞从根尖顶端向上的顺序依次是_ → → → 。...
【单选题】根尖的结构从顶端向上依次是 [ ]
A.
根冠、分生区、成熟区、伸长区
B.
根冠、分生区、伸长区、成熟区
C.
成熟区、伸长区、分生区、根冠
D.
根冠、伸长区、分生区、成熟区
【单选题】Dr. Scott Solomon and his colleagues found that _________.
A.
Bextra can be used in heart surgery.
B.
4 percent of those given placebo had an adverse event.
C.
Celebrex worked as well as aspirin to prevent colon cancer.
D.
Celebrex doubled or even tripled deaths from heart attack, stroke or heart failure.
【单选题】The word 'sunscreen' (Line 2, Para.2) probably means ______.
A.
screens used to enjoy the sunlight
B.
creams used to prevent tanning
C.
sun umbrellas
D.
sun glasses
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