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【单选题】
下面关于清洁验证说法不正确的是 ( )A.
清洁验证是通过文件证明清洁程序有效性的活动
B.
确保产品不会受到来同一设备上生产的残留物、清洁剂以及微生物污染
C.
清洁方法按照以往经验,清洗设备干净即可,无需验证
D.
有效防止污染和交叉污染
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【简答题】TTL 集电极开路门必须外接 ________ 才能正常工作。
【简答题】利用下面的信息，构建总体均值的置信区间。
【简答题】A in general B on average C by contrast D at length
【单选题】The approximate average values of weight length and head circumference 1-year-old children are
A.
weight 15kg, length 65cm, head circumference 46cm
B.
weight 15kg, length 75cm, head circumference 50cm
C.
weight 10kg, length 75cm, head circumference 46cm
D.
weight 10kg, length 65cm , head circumference 46cm
E.
weight 10kg, length 85cm , head circumference 35cm
【单选题】Secondary and higher education______available to all high school graduates in this country so far.
A.
have made
B.
were made themselves
C.
have been made
D.
were made it
【单选题】What is the effective average sentence length in students’ writing?
A.
An average of 12-20 words
B.
A series of 10-word sentences
C.
A series of 35-word sentences
D.
None of them are right.
【单选题】The approximate average values of weight、length、and head circumference in 1-year-old children are
A.
Weight 15kg, length 65cm, head circumference 46cm
B.
Weight 15kg, length 75cm, head circumference 50cm
C.
Weight 10kg, length 75cm, head circumference 46cm
D.
Weight 10kg, length 65cm, head circumference 46cm
E.
Weight 10kg, length 85cm, head circumference 35cm
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