LAN是（）业务的接入方式之一。A、窄带 B、移动电话 C、宽带 D、专线

影响给水回热加热热经济性的主要参数为（）、（）、（）。

微小病变性肾损害为（）

A.高分子量蛋白尿

B.中分子量蛋白尿

C.低分子量蛋白尿

D.混合性蛋白尿

E.轻链蛋白尿

探伤时必须使用幅度报警闸门的方法是（）。

A、横波法

B、纵波法

C、自动超声探伤法

D、手工超声探伤法

Peter Welsh, CFA, gathered the following information from a company's most recent financial statements ( U.S. $ in millions):

Welsh also determined that the company uses the LIFO inventory method, but most companies in the industry use the FIFO method. The footnotes to the financial statements indicate that if the company had used the FIFO method, the inventory balance would have been $ 50 million higher than the amount reported on the company's most recent financial statements. If the company's common stock is currently selling for $70 per share, the most appropriate price to book value ratio to use in valuing the company is:()

A. 2.22.

B. 2.03.

C. 2.16.

完整的口头言语发展的关键期是（）。

A.婴儿期

B.幼儿期

C.童年期

D.青春期

E.青年期