Supposing there are two stocks in an market index: Company X has 50 shares valued at $ 2 each. Company Y has 10 shares valued at $ 10 each. When the index started the price weighted index calculated out to $ 6, and the value-weighted index was 1. Nothing has changed exert. Now the price of Company X’s stock is selling for $4 per share. What is the price-weighted index and what is the value-weighted index Price-weighted Value-weighted （） ①A. 6 95 ②B. 7 150 ③C. 9 125

A．① 

B．② 

C．③

原发性肺结核发生血道散播时，引起的血源性结核病有哪三种类型（ ）。

A．肝粟粒性结核病、肺粟粒性结核病和肾粟粒性结核病

B．全身粟粒性结核病、肺粟粒性结核病和肺外器官结核病

C．轻型结核病、中型结核病和重型结核病

D．中央型、外周型和集蒋型

E．转移型、感染型和转变型