城市生活用水价格应当按照（）的原则制定。
A.合理计价
B.保本微利
C.效益优先
D.统筹兼顾
参考答案：B
—I’m sure I will be a student of the middle school which I have been dreaming of.
—If so, your parents will _________ you.
A．be proud of
B．be angry with
C．be bored of
D．be worried about
26岁妊娠妇女。GP0，末次月经记不清。产科检查：宫高34cm（宫底于剑突下两横指），胎头入盆，胎心位于脐右下方。其孕周是（）
A.妊娠20周
B.妊娠24周
C.妊娠28周
D.妊娠34周
E.妊娠40周
