speedgodmax 幼苗
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1年前
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开关闭合后,磁感线的形状和方向如图所示.请在图中A处标出磁体的磁极名称,并在B处标出电源的+、﹣两极.
1年前
May I speak to your manager Mr. Williams at five o’clock tonight?”
1年前
The visitors ____ that they ____ very glad to visit our company. [ ]
1年前
He asked me ________ the likely result of the matter will be.
1年前
Boys and girls, it’s time ______ class now.
1年前