2. BYOD actually started in the _______________ world in the mid to late 80s. (答案首字母大写)

When was the Yuantong Temple built? A: in early 8th century B: in mid 8th century C: in late 8th century

Which of the following periods involves the Golden Age of Hollywood? A: From 1895 to 1930 B: From 1930 to 1949 C: From the late 1920s to the early 1960s D: From the mid 1890s to the late 1920s

A) August 25, 1968. B) August 29, 1958. C) August 25, 1958. D) August 29, 1978.

That schedule included a break from late July to early August to allow players to ____ in the Tokyo Olympics, which were postponed until 2021. A: participate B: involve C: consume D: occupy

已知三阶矩阵$A$满足$\mid A-E\mid=\mid A-2E\mid=\mid A-3E\mid=0$，则$\mid A\mid$=( )。 A: $4$ B: $6$ C: $12$ D: $3$

August

八月被命名为August，是因为august表示“八”的意思。

设$A,B$是$n$阶正交矩阵，且$\mid A\mid=-\mid B\mid$，则( ). A: $A+B$可逆 B: $A+B$不可逆 C: $\mid A+B\mid=1$ D: $\mid A+B\mid=-1$

【单选题】The following options are written correctly on the date of the English letter EXCEPT ()以下选项中书信日期写作错误的是() A. August 2, 2018 B. 2018 August 2 C. 2 August 2018 D. August 2nd, 2018