新生儿生理性黄疸出现的时间是生后（）
A．1～5天内
B．2～3天
C．4～5天
D．5～6天
E．6～7天
参考答案：B
已知y与x成正比例，且当x=1时，y=3．则y与x的关系式是______．
Good heavens! There you are! We＿＿anxious about you, and we ＿＿you back throughout the night.
A．are； expect
B．were； had expected
C．have been；were expecting
D．are； were expecting
