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【单选题】
哪个级别实验室门上不需要贴有生物危 害警告标识,并标示实验室名称、生物安全水平等级、实验室负责人及其紧急联系方式等信息。A.
BSL-1
B.
BSL-2
C.
BSL-3
D.
BSL-4
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举一反三
【单选题】Pepys and his wife Jane had asked some friends to dinner on Sunday, September 2nd, 1666.They were up very late on the Saturday evening, getting everything ready for the next day, and while they were b...
A.
The Great Fire of London.
B.
Who was the first to discover the fire.
C.
What Pepys was doing during the fire.
D.
The losses caused by the fire.
【简答题】中国药典规定,“精密称定”系指称取重量应准确至所取重量的(__);“称定”系指称取重量应准确至所取重量的(__);取用量为“约”若干时,系指取用量不得超过规定量的(__)。
【单选题】《中国药典》规定，"精密称定"系指称取重量应准确至（）
A.
准确到小数点后第3位
B.
准确到小数点后第4位
C.
所取重量的1/1000
D.
所取重量的1/100000
E.
取样量为4位有效数字
【单选题】《中国药典》规定，“精密称定”系指称取重量应准确至
A.
准确Nd,数点后第3位
B.
准确Nd,数点后第4位
C.
所取重量的l／1000
D.
所取重量的l／100000
E.
取样量为4位有效数字
【单选题】中国药典规定“精密称定”时，系指
A.
称取重量应准确至所取重量的十万分之一
B.
称取重量应准确至所取重量的万分之五
C.
称取重量应准确至所取重量的万分之
D.
称取重量应准确至所取重量的千分之
E.
称取重量应准确至所取重量的千分之五
【单选题】What is Bruce asked to do?
A.
Leave the room
B.
Go upstairs
C.
Speak briefly
D.
Take a seat
【单选题】—What would you like to do after finishing your education, Bruce? —I'd like to work ______. [ ]
A.
as quickly as I do
B.
so early as I can
C.
as good as possible
D.
as soon as possible
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