在一桌子上有47本书，其中27本是小说，32本是红色的封面，6本既不是小说也不是红色封面。问桌子上有多少本带红色封面的小说( )

A．18
B．17
C．16
D．15

In (85) software, one question of near-universal interest is how rapidly Windows NT, which began shipping last summer, will be (86) in the marketplace and for what uses. For the most part, observers are (87) about the operating system’s long term prospects, but expect it to remain on (88) rather than desktops during 1994, saying that it won’t become a mainstream product until (89) PCs typically have 16 to 24 MB of RAM, which is unlikely to happen next year.

（86）是（）

A.applications

B.accepted

C.clients

D.enthusiastic

E.servers

F.desktop

G.systems

H.replaced