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【单选题】
求解矩阵方程 AX=B 的方法有( ).A.
两边同时 A 的逆
B.
两边同时右乘 A 的逆
C.
两边除以矩阵 A
D.
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反馈参考答案：
举一反三
【单选题】对《琵琶行》中词句的理解,不恰当的一项是
A.
“嘈嘈”形容弹奏声音浊杂粗重，“切切”形容弹奏声音轻细且急促。
B.
“间关”形容鸟声婉转，这里指音乐的流畅悦耳。
C.
“别有幽愁暗恨生”，是说音乐勾起听众内心深处的愁思和怨恨。
D.
“银瓶乍破”“刀枪鸣”形容音乐的激越雄壮，惊心动魄。
【单选题】Chang also said the franchise approach would have a great ________on local drug retail market.
A.
mission
B.
confidence
C.
impact
D.
commitment
【单选题】The Great Wall is called "Wan Li Chang Cheng" because it is a "Ten Thousand-li-long Wall".
A.
T
B.
F
【判断题】The Great Wall is called “ Wan Li Chang Cheng ” because it is a “ Ten Thousand-li-long Wall ” .
A.
正确
B.
错误
【单选题】听力原文：When did you last talk to Mr. Green? (A) I prefer it in red. (B) The presentation will last about 40 minutes. (C) Yesterday on the telephone. (11)
A.
B.
【单选题】I ________________ a strip of red paper round the neck of the vase to distinguish it from the others.
A.
wound
B.
wounded
C.
curved
D.
bound
【单选题】A vessel not under command making way at night would show ______.
A.
two all-round red lights in a vertical line
B.
anchor lights and sidelights
C.
two all-round white lights in a vertical line，sidelights and a stern light
D.
two all-round red lights in a vertical line，sidelights，and a stern light
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