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【判断题】
hourglass——墨镜A.
正确
B.
错误
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【简答题】Mrs. Thompson came to the 5 th grade class and noticed that Teddy was always alone. Also, he did badly in his studies．When she reviewed Teddy’s past records，she find he was a good child at first，but h...
【单选题】听力原文：We currently believe that the earths crust-the rocky part of the earth-is composed of several large, rigid plates. These plates are being created at some edges and being destroyed at others. They...
A.
Wilson developed a warning system for earthquakes.
B.
Wilson wrote an article that contradicted scientific law.
C.
Wilson first proposed the theory of plate tectonics.
D.
Wilson discovered sea floor spreading in the North Atlantic.
【单选题】霉菌、酵母菌检验稀释时,根据对样品污染状况的估计,选择2~3个适宜稀释度的样品匀液,()无菌培养内。
A.
每个X稀释度分别吸取1mL样品匀液加入两个
B.
在进行10倍递增稀释时,每个稀释度分别吸取1mL样品匀液加入两个
C.
每个稀释度分别吸取1mL样品匀液加入一个
D.
在进行10倍递增稀释时,每个稀释度分别吸取1mL样品匀液加入一个
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