在平面直角坐标系中,将点A (-2,1)向左平移2个单位到点Q,则点Q的坐标为 [ ]
A.(-2,3)
B.(0,1)
C.(-4,1)
D.(-4,-1)
答案:C
She is afraid of _____ strangers. [ ]
A. talking
B. talking to
C. to talk to
D. talked
下列变化中,属于物理变化的是
A.石油蒸馏
B.雕像受到酸雨腐蚀
C.葡萄糖在人体内氧化
D.用富含淀粉的甘薯酿酒