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【单选题】
设 是 的相反向量,则下列说法错误的是A.
与 的长度相等
B.
C.
与 一定不相等
D.
是 的相反向量
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反馈参考答案：
举一反三
【简答题】日本于( )年颁布第一次锁国令。
【单选题】Look! The children are ____ the school bus.
A.
talking to
B.
listening to
C.
waiting for
D.
living in
【单选题】听力原文：W：David，could you look after the children for me while I go to the doctor? The only appointment I could get is at eleven o'clock． M：All right．But I have to leave at one o'clock．I'm going to a par...
A.
To make an appointment.
B.
To attend a party.
C.
To go to work.
D.
To look after the children.
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