2015年7月30日中商情报网报道,2015年上半年河北省民营企业进口额为583.1亿元,比2014年同期增长3.5%,记作+3.5%,那么2015年上半年河北省国有企业进口额为271.3亿元,比2014年同期下降4.6%,应记作() A . +4.6% B . ﹣4.6% C . +8.1% D . ﹣1.1% 答案:BLook! Jack and his monkey ______ flying disk together in the garden now.
[ ]A. is playing B. was playing C. are playing D. were playing