∵分式x+1x-2的值为0,
∴x+1=0x-2≠0,解得x=-1.
故选C.
立井底装载信号工将钥匙()旋转,按“手动”按钮,操作台上“手动”灯亮后,将按规定的流程进行操作。
A.向左
B.向右
C.向前
D.向后
Mr. Brown arrived at the airport at 5 'clock _______ the evening of Saturday.[ ]
A. on
B. of
C. in
D. at