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【单选题】
治疗猩红热时抗生素首选A.
头抱
B.
青霉素
C.
阿米卡星
D.
万古霉素
E.
庆大霉素
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反馈参考答案：
举一反三
【单选题】According to the Eq. the voltage between two points a and b in an electric circuit is the ( ) needed to move a unit charge from a to b.
A.
power
B.
energy (or work)
C.
voltage
D.
current
【简答题】There are several distinct approaches that we can take, In one we write a set of simultaneous equations in which the variables are voltage, this is known as nodal ysis.
【单选题】The variable manufacturing overhead efficiency variance for December was
A.
$50,000 U.
B.
$350,000 U.
C.
$10,000 F.
D.
$60,000 F.
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