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: $3$

28. The building over there is a library, _______ standing our lab. A: on the east of which B: east of it C: on the east of that D: east of which

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: $\mid A+B\mid=-1$

Which countries are involved in the West-Europe to Mid-East to Far-East route? A: San Francisco B: HK C: Athens D: Karachi

China is ___ East Asia. Japan is ___ the east of China.

What is the address given by the man A: 1120, East 42nd Street. B: 1120, East 32nd Street. C: 1220 ,East 32nd Street. D: 1220 ,East 42nd Street.

Shanghai is ________ the east of China and Japan is _________ the east of China. A: in; to B: in; on C: on; to D: in; in

What is the address given by the man(). A: 1120, East 31st Street. B: 1120, East 32nd Street. C: 1220, East 30th Street.

Jiangsu is___ the east of China, but Japan is ___ the east of China. A: to; in B: in; to C: on; to D: to; on

Excel2010从18份身份证号中获取出生日期可以使用（）函数。 A: MID(A1,6,8) B: MID(A1,7,8) C: =MID(A1,6,8) D: =MID(A1,7,8)