下列哪项不是多胎妊娠的母体并发症
A．妊娠剧吐B．缺铁性贫血C．肝内胆汁淤积症D．子痫前期E．过期妊娠
参考答案：E
根据句意及首字母提示完成下列句子。
1. My parents grow rice and vegetables on the f _____ .
2. It's too cold. Let's l _____ a fire to keep warm.
3. My grandfather used to collect water from the w _____.
4. The famous musician was unable to a _____ because of an accident.
5. The desk is made of w _____. It's very strong.
在混凝土用砂量不变条件下，砂的细度模数愈小，说明（）。
A.该混凝土细骨料的总表面积增大，水泥用量提高
B.该混凝土细骨料的总表面积减小，可节约水泥
C.该混凝土用砂的颗粒级配不良
D.该混凝土用砂的颗粒级配良好
