把50克盐溶入150克水中,盐与盐水的比是( )
A.1:5
B.1:4
C.1:3
D.1:2
50:(50+150),
=50:200,
=1:4;
故选:B.
I _____ not Tina. My name ____ Walter. [ ]
A. am; am
B. am; is
C. am; are
D. is; is
汽车行驶中灯光照射距离(),表明车辆已驶近上坡道处。
A.由近变远
B.由远变近
C.逐渐消失