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【单选题】
可在3~4摄氏度的条件下长期存活,具有嗜的细菌是A.
沙门氏菌
B.
大肠杆菌
C.
金黄色葡萄球菌
D.
单核细胞增生李斯特菌
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举一反三
【单选题】The doors in German offices and homes are generally kept _____.
A.
wide open to symbolize a welcome of friends and strangers
B.
slightly ajar to suggest that people should knock before entering
C.
half open suggesting that some people are welcome and some are not
D.
tightly shut
【单选题】Who are the worst sleepers based on a survey of the people in 13 countries around the world?
A.
The French people.
B.
The German people.
C.
The British people.
D.
The American people.
【简答题】Caught off guard by the invasion, Soviet leader Joseph Stalin instructed the Russian people to “scorch the earth” in front of the German invaders. Please translate the sentence into Chinese. Why did J...
【简答题】下列关于摩尔质量的说法正确的是（ ） A．水的摩尔质量是18g B．2mol水的摩尔质量是1mol水摩尔质量的2倍 C．任何物质的摩尔质量都等于它的式量 D．水的摩尔质量是氢气摩尔质量的9倍
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