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【多选题】
消灭新型病毒的措施有:A.
75%酒精
B.
75%食用酒精
C.
56度热水
D.
56度热水并浸泡30分钟
E.
含氯消毒剂
F.
氯仿等脂溶剂
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皮皮学刷刷变学霸
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【单选题】干燥失重测定法中,取供试品,在规定条件下干燥至恒重,所谓恒重是指()。
A.
连续两次干燥后的质量差异在0.3 mg以下
B.
第二次干燥后的质量比前-次的少 0.4 mg以下
C.
连续两次干燥后的质量差异在0.5 mg以下
D.
干燥前后的质量差异在0.3 mg以下
【简答题】She’s a lovely girl. She has long and black hair. She is quite tall and slim. Her eyes are bright and black. She is 13 years old. She is good at singing. She likes listening to music. She is S.H.E.’s ...
【单选题】干燥失重测定法中,取供试品,在规定条件下干燥至恒重,所谓恒是指()
A.
连续两次干燥后的质量差异在0.3mg以下
B.
第二次干燥后的质量比前一次的少0.4mg以下
C.
连续两次干燥后的质量差异在0.5mg以下
D.
千燥前后的质量差异在0.3mg以下
【简答题】Who is singing? Oh,
______ Xiao Liu.A. it's B. he's C. this is D. she's
【简答题】Mr. White was holding a party at home to celebrate his sixtieth birthday. To make him happy, one of his women friends __ 21 __ to sing a song for him. Now she was singing. One guest turned to a __ 22 ...
【简答题】Mr. White was holding a party at home to celebrate his sixtieth birthday. To make him happy, one of his women friends __ 1 __ to sing a song for him. Now she was singing. One guest turned to a __ 2 __...
【简答题】Who is
singing? Oh, ____________ Xiao Liu.A. it's B. he's C. this
is D. She's
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