婴儿过量饮用饮料可导致()。
A、腹泻、肥胖
B、缺铁、肥胖
C、缺钙、缺铁
D、食欲下降
参考答案:A
The manager needs an assistant that he can _____ to take care of problems in his absence.
A.count on
B.count in
C.count up
D.count out
以80486为CPU的PC机,其系统总线至少应采用( )。
A.EISA总线
B.S-100总线
C.ISA总线
D.PC-XT总线