[范文] We proposed to them that the football match ______ put off. 日期：2022-06-20 18:50:05 点击：124 好评：0
72: We proposed to them that the football match ______ put off. ( ) A: be B: will be C: been D: being ...
[范文] Identify the errors in the following sentence:John said his 日期：2022-06-20 18:47:36 点击：84 好评：0
36: Identify the errors in the following sentence:John said his mother would buy him a five-speeds racing bicycle for his sixteenth birthday. ( ) A: would buy him B: five-speeds C: for D: sixteenth birthday ...
[范文] Identify the errors in the following sentence:She wanted to 日期：2022-06-20 18:47:07 点击：67 好评：0
31: Identify the errors in the following sentence:She wanted to visit the city so much that nothing could dissuade him to do so. ( ) A: to visit B: so much C: that D: to do so ...
[范文] Identify the errors in the following sentence:The scientist 日期：2022-06-20 18:45:56 点击：131 好评：0
16: Identify the errors in the following sentence:The scientist thinks it necessary that all the inventions of mankind must be used for good. ( ) A: thinks it B: mankind C: must D: for good ...
[范文] 秩为r的矩阵中,所有r阶子式均不为零。 日期：2022-06-20 18:44:20 点击：107 好评：0
93: 秩为r的矩阵中,所有r阶子式均不为零。 A: 对 B: 错 ...
[范文] 任何向量组都有极大无关组。 日期：2022-06-20 18:43:23 点击：170 好评：0
88: 任何向量组都有极大无关组。 A: 对 B: 错 ...
[范文] 对单位矩阵施行初等变换后得到的矩阵都是初等矩阵。 日期：2022-06-20 18:42:26 点击：128 好评：0
77: 对单位矩阵施行初等变换后得到的矩阵都是初等矩阵。 A: 对 B: 错 ...
[范文] 若A为可逆矩阵,则AT也是可逆矩阵。 日期：2022-06-20 18:41:29 点击：148 好评：0
68: 若A为可逆矩阵,则AT也是可逆矩阵。 A: 对 B: 错 ...
[范文] 设A、B均为n阶方阵,|A+AB|=0的充分必要条件是|A|=0或|E+B|=0。 日期：2022-06-20 18:40:33 点击：133 好评：0
61: 设A、B均为n阶方阵,|A+AB|=0的充分必要条件是|A|=0或|E+B|=0。 A: 对 B: 错 ...
[范文] A、B为任意可乘矩阵,则|AB|=|A||B|。 日期：2022-06-20 18:39:35 点击：187 好评：0
52: A、B为任意可乘矩阵,则|AB|=|A||B|。 A: 对 B: 错 ...
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