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【判断题】
磁感应强度一定时，磁场强度与铁磁材料的磁导率成正比。A.
正确
B.
错误
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反馈参考答案：
举一反三
【简答题】彩色复制图像中 部位的色量通常会表现得不足。
【简答题】汽车悬架应分为 和 这两部分。在这两个系统的共同作用下,可以达到很多使用要求。
【简答题】悬架应分为()和()。
【单选题】进行肘关节前后位摄影时,放置铅字标记错误的是
A.
铅字内容应当包括日期
B.
铅字内容应当包括左右方向
C.
铅字内容应当有X线片号
D.
铅字排正放
E.
铅字排反放
【单选题】The passage suggests that Nadine Cohodas is a ______ writer.
A.
truthful
B.
musical
C.
creative
D.
historic
【单选题】In Para. 1, the writer suggests that the Secretary of State for the Environment has ______.
A.
created an impossible target
B.
provided a target without a method
C.
given clear details of how to achieve a target
D.
given manufacturers a target to aim for
【单选题】The writer suggests that economics is concerned with______.
A.
explaining to bankers the price changes
B.
understanding the effect of relative price changes
C.
trying to understand why some prices rise fast
D.
the same financial considerations as banking
【单选题】The writer suggests that pruning should be done in winter because______.
A.
the cut surface can heal more quickly
B.
open wounds on the tree run the less risk of getting diseased
C.
a gardener can do pruning more easily
D.
the leaves can interfere
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