单项选择。
Did you a good time in America?[ ]
A. have
B. has
C. had
答案：A
健康足月新生儿，生后42天来院儿童保健门诊检查。家长询问最适宜的婴儿食品是什么，正确的回答是
A．全脂奶粉B．牛乳C．母乳D．羊乳E．脱脂奶粉
