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【单选题】
According to the last paragraph, which of the following statements about the two research teams is true?
A.
The two research teams whose findings Price correlates hers with are based in Asia.
B.
Price corrects some inaccurate data provided by the two teams operating in Asia.
C.
Price is working with the two research teams iri Japan.
D.
The two teams in Asia volunteer to correlate their findings with Price's.
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【判断题】随时间而循环变化的应力称为交变应力,交变应力随时间变化的历程称为应力谱或应力变化曲线。
A.
正确
B.
错误
【单选题】“筛分法”是用一套孔径依次由大到小的标准筛做试验,以下不是标准筛的孔径的是()
A.
20mm
B.
12mm
C.
2mm
D.
0.5mm
【判断题】筛分法是借助筛网孔径大小将物料进行分离的方法。
A.
正确
B.
错误
【判断题】随时间变化的应力称为交变应力。
A.
正确
B.
错误
【单选题】构件受到随时间作()性变化的应力作用,这种应力称为交变应力或重复应力。
A.
无规律
B.
周期
C.
间断
D.
长期
【单选题】Which of the following statements about the statistics of pet ownership in the US is wrong?
A.
It's estimated that 78 million dogs & 85.8 million cats are owned in the United States. ~44% of all households in the United States have a dog, & 35% have a cat, according to American Pet Products Association (APPA).
B.
APPA reports that 64% of dogs are purchased from breeders, while 23% of dogs & 31% of cats are obtained from an animal shelter or humane society.
C.
~6.5 million companion animals enter US animal shelters nationwide every year. Of those, ~3.3 million are dogs and 3.2 million are cats.
D.
Each year, ~1.5 million shelter animals are euthanized (670,000 dogs & 860,000 cats). ~3.2 million shelter animals are adopted per year (1.6 million dogs & 1.6 million cats).
【单选题】水沙法主要用于()的泥沙分析,一般不能装成套筛进行多级一次分析,通常的做法是,将试样置于最大孔径筛上,高水压冲洗,使小于该筛孔径细沙通过;然后将已经通过最大孔径筛的水沙样置于次大孔径筛上,高水压冲洗,使小于该筛孔径细沙通过;;直至分到预定的最小孔径筛。收集各级筛上水沙样,烘干,称量沙量。
A.
很少
B.
很大
C.
很粗
D.
很细
【判断题】2019年3月1日,中国航协全面停止了销售代理资质认可工作。
A.
正确
B.
错误
【单选题】Pet ownership can create feelings of being needed and a sense of purpose for those who may be feeling ____ aside.
A.
flung
B.
tossed
C.
threw
D.
cast
【简答题】随时间作周期交替变化的应力称为 。
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