选择题:What _________ in Iraq? Have you read the ________

题目内容:
What _________ in Iraq? Have you read the _________ news?(单选)—4分
A happened, late
B was happened, later
C happened, latest
D has happened, last
参考答案:

变压器铁心处于饱和状态时,若励磁电流为正弦波,则磁通波形为________;若磁通波形为正弦波,则励

变压器铁心处于饱和状态时,若励磁电流为正弦波,则磁通波形为________;若磁通波形为正弦波,则励磁电流为_________。

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斯宾塞对社会学的贡献,在于他在科学分类中提出了建立社会学的构想。( )

斯宾塞对社会学的贡献,在于他在科学分类中提出了建立社会学的构想。( )

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