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