I need to improve my English.
A. Wayne Muller.
B. Thomas Esser.
C. Hideki Tamaguchi.
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I would like to work abroad.
A. Wayne Muller.
B. Thomas Esser.
C. Hideki Tamaguchi.
My job is to check that the quality standards are met.
A. Wayne Muller.
B. Thomas Esser.
C. Hideki Tamaguchi.
为了避免培养的目的微生物不受到杂菌的污染,必须采用无菌操作技术。
A. 对
B. 错
包扎有助于灭菌后玻璃器皿保持无菌状态,防治被空气中的微生物或尘埃再次污染。
A. 对
B. 错