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【单选题】
体内药物分析中,内标溶液的浓度应与标准系列溶液的( )峰面积相当。A.
最高浓度
B.
最低浓度
C.
任一浓度
D.
中间浓度
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反馈参考答案：
举一反三
【单选题】I was still sleeping when the fire ________, and then it spread quickly. [ ]
A.
broke out
B.
put out
C.
came out
D.
got out
【单选题】To prevent the spread of the epidemic, the public health organization carries out frequent ______ on the restaurants.
A.
inspection
B.
investigation
C.
observation
D.
examination
【简答题】We spread out the payments for the new car t hree years.
【单选题】And with suppliers increasingly spread out in Mexico, the Far East, and Europe, the impact of an increase in auto sales, say, is ______globally.
A.
infected
B.
distributed
C.
issued
D.
diffused
【简答题】［A］go beyond ［B］set out ［C］come around ［D］spread over
【单选题】I was sleeping when the fire ______, and then it spread quickly .
A.
broke out
B.
put out
C.
came out
D.
got out
【单选题】For many cities in the world, there is no room to spread out further, _______ New York is an example.
A.
for which
B.
in which
C.
of which
D.
from which
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