某企业去年的销售净利率为5.73%，资产周转率为2.17，今年的销售净利率为4.88

计算：2a²+3a²=       ．

句型转换

1.This is a funny comedy.(变为复数形式)

  ______________________________  

2.Those are action movies.(变为单数形式)

_______________________________

3.My father likes Beijing Opera. And my mother likes it, too.(合并为一句话)

_______________________________

4.Does your brother want to see an action movie?(作否定回答)

_______________________________

5.His brother likes thrillers.(就划线部分提问)

_______________________________

A client in her 36th week of pregnancy is admitted to the hospital with vaginal bleeding. After undergoing an ultrasonic scan, she's diagnosed with placenta previa. Which assessment finding would best confirm this diagnosis ？（）

A．A rigid abdomen.

B．A soft, nontender uterus.

C．Painful vaginal bleeding.

D．Hypotension.

什么是记录公式？它说明了什么？

“入芝兰之室，久闻而不知其香”说明的是

A．感觉过敏
B．感觉适应
C．感觉相互作用
D．感觉减退
E．感受性补偿