Besides them, we need _____ to do the work. A: fifteen people more B: more fifteen people C: fifteen more people

【单选题】Walking briskly for thirty minutes will burn as many calories as__________. A. to run for fifteen minutes B. running for fifteen minutes C. you run for fifteen minutes D. fifteen minutes walking

(单选)<br/>When did Baidu's unmanned vehicle appeared in public for the first<br/>time?(). A: December<br/>thirteen, twenty fifteen B: December<br/>fourteen, twenty fifteen C: December<br/>fifteen, twenty fifteen D: December<br/>sixteen, twenty fifteen

The petrol station lies within （）of Victoria’s farm. A: fifteen-minute-drive B: fifteen minutes’ drive C: fifteen minute’s drive D: fifteen minutes drive

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: $3$

What is the temperature? A: ten degrees B: minus ten C: fifteen below D: plus fifteen

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

The<br/>petrol station lies within ______ of Victoria’s farm. A: fifteen-minute-drive B: fifteen<br/>minutes’ drive C: fifteen<br/>minute’s drive D: fifteen<br/>minutes drive

Where has the key been found A: Fifty dollars. B: Fifteen dollars. C: Fifteen point fifty dollars.

The earthly counterpart of the fifteen stars is ____________________________.