生物具有生长、繁殖的现象。下列属于生物的是[ ]
A．榕树
B．电脑
C．空气
D．水
答案：A
She parked her car outside the window _____, but the next morning she found it missing. [ ]
A. as usual
B. as usually
C. as ever
D. as before
社会保障既有按劳分配的成分，又有按需分配的成分
