跨大区互联系统联合运行的控制中,最佳的配合方式为( )。
A.TLBC-CFC; B.CFC-CNIC; C.CNIC-TLBC; D.TLBC-TLBC。
参考答案:D
It is reported that single-parent children _____ some of the functions that the absent adult in the house
would have served. [ ]
A. take up
B. take over
C. take in
D. take on
注意的功能主要有()、()、()。