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【单选题】
如下关于方阵乘积交换性的叙述中, 错误的是( ).A.
若 A 可逆 , 则 A 与其逆可交换相乘
B.
实对称矩阵可与其转置矩阵交换相乘
C.
初等矩阵与可逆矩阵可交换相乘
D.
矩阵都可与 cI 交换相乘 , 其中 c 是常数
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举一反三
【单选题】An English friend invites you to tea at 4 pm. What do you think or say?
A.
What a treat! I love the sandwiches and cakes. Carrot cake is my favorite!
B.
“Sure, but I’ll only have five or ten minutes as I’m studying.”
C.
“Thank you, I’d love a cup of tea!”
D.
“Yes, but any chance of having tea at 6 pm or 7 pm?”
【简答题】期末将“销售费用”账户的余额转入“本年利润”账户的 ,结转后该账户无余额。
【简答题】An English friend invites you to tea at 4 pm. What do you think or say?A. What a treat! I love the sandwiches and cakes. Carrot cake is my favorite! B. “Sure, but I’ll only have five or ten minutes a...
【单选题】An English friend invites you to tea at 4pm. What do you think or say?
A.
What a treat! I love the sandwiches and cakes. Carrot cake is my favourite!
B.
"Sure, but I'II only have five or ten minutes as I'm studying.
C.
"Thank you, I'd love a cup of tea!
D.
"Yes, but any chance of having tea at 6 pm or 7 pm?
【简答题】He was lying on his side watching her.
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