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【单选题】
The new job gave me an _______ income.
A.
add
B.
addition
C.
additional
D.
additionally
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参考答案：
参考解析：
刷刷题刷刷变学霸
举一反三
【单选题】About Maxwell's equations and their explanation, which of the following statements is CORRECT?
A.
B.
C.
Magnetic field lines are always closed because there is no magnetic charge or magnetic monopole.
D.
The assumption of displacement current is used to explain how changing magnetic field causes electric field.