下列不属于生态系统的是[ ]
A．大沟河水库
B．博爱农场的一群奶牛
C．良安蔬菜基地
D．王屋山国家地质森林公园
答案：B
He says, you must take in those responsibilities.
A．take away
B．take on
C．take out
D．take off
—Do you like English ______ science, Daming?
—I like science. [ ]
A. and
B. or
C. for
D. of
