Jennifer likes kids very much. She is good______ kids. [ ]
A. with
B. at
C. for
D. in
答案:A
87.78元、59.50元、121.61元、12.43元以及66.50元的总和是:
A.343.81
B.347.82
C.347.83
D.343.84
在()能单独采取全水分煤样。
A.火车
B.煤堆
C.船舶