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【单选题】
采用( )加速灰化的方法,必须作空白试验。A.
滴加双氧水
B.
加入碳铵
C.
乙酸镁
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举一反三
【单选题】These experiences ______ me _____ the drug’s harmful effects.
A.
are convinced; by
B.
convinced; of
C.
were convinced; by
D.
convinced; at
【简答题】What happened to the items requested? The items requested have been ______.
【单选题】AIDS was first identified in 1981 among homosexual men and drug users in western Europe.
A.
Y
B.
N
C.
NG
【单选题】What kind of items cannot be returned?
A.
Items that have been personalized
B.
Items damaged during shipping
C.
Items unaccompanied by an original receipt
D.
Items ordered more than a month ago
【多选题】Mr. Anderson and his colleagues are having a meeting. Which items are covered in the meeting?
A.
The proposal for the project
B.
Bill’s meeting with Mr. Black
C.
The price of the products
D.
The packing of the products
E.
The budget for the project
【单选题】After the insert method is executed, items in the list having an index greater than or equal to the stated index are ____________.
A.
moved one position to the right in the list
B.
moved one position to the left in the list
C.
do not change position in the list
D.
none of the above
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