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【单选题】
一台并励直流电动机若改变电源极性，则电机的转向（ ）。A.
不变
B.
改变
C.
无法确定
D.
xx
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【简答题】阅读理解。 I was 9 years old when I found out my father was ill. It was 1994, but I can remember my mother's words as if it were yesterday: 'Kernel, I don't want you to take food from your father, because ...
【单选题】There was no doubt ____ it was in the supermarket _____ I lost my wallet yesterday.
A.
that, that
B.
whether, whether
C.
that, whether
D.
whether, that
【单选题】It was not until yesterday ______ he returned _______ to know the news. [ ]
A.
that ; that I got
B.
when ; that did I get
C.
when ; that I got
D.
that ; that did I get
【单选题】应用文具有直接功用性,这对应用文写作提出了( )要求。
A.
应用文要讲规矩，不要随意地创新或独树一帜。
B.
应用文的写作有极其明确的目的性，要首先明确写作目的，然后再撰文。
C.
写文章时要条理清晰，层次分明。
D.
应用文的语言表述准确、简明、精炼、平实、不产生歧义
【简答题】s on the other end have more up and downs and our emotions fluctuates with the official announces we receive on the evolution of the situation. And trust me, they have a big impact on our mood an...
【单选题】应用文具有直接功用性,这对应用文写作提出了( )要求
A.
写文章时要条理清楚，层次分明。
B.
应用文的语言表述准确、简明、精炼、平实，不产生歧义。
C.
应用文从写作有极其明确的目的性，要首先明确写作目的，然后再撰文。
D.
应用文要讲规矩，不要随意地创新或独树一帜。
【单选题】以下有关贝叶斯信念网络(BBN)的叙述中错误的是( )
A.
BBN 是一个有向无环图
B.
BBN 中每个结点代表一个随机变量
C.
BBN 中每条有向边表示变量之间的依赖关系
D.
BBN 中最多只有一个输出结点
【简答题】I celebrated my 40 th birthday yesterday! And one way I celebrated it was by doing 40 acts of random kindness. While I 1 (certain) couldn’t take credit for this idea as it had been done many times, I ...
【单选题】It was because he wanted to draw money from the bank______he went downtown yesterday.
A.
when
B.
how
C.
why
D.
that
【单选题】应用文具有直接功用性,这对应用文写作提出了( )要求。
A.
写文章时要条理清晰，层次分明。
B.
应用文的写作有极其明确的目的性，要首先明确写作目的，然后再撰文。
C.
应用文的语言表述准确、简明、精炼、平实，不产生歧义。
D.
应用文要讲规矩，不要随意地创新或独树一帜。
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