肝阳头痛的特点有A．心烦易怒 B．头痛而眩 C．面色苍白 D．脉弦有力

桥吊上安装的限制载荷的安全装置包括（）。

A、夹轨器

B、超载限制器

C、限位器

D、缓冲器

根据《建设工程质量管理条例》规定，屋面防水工程、有防水要求的卫生间、房间和外墙面的防渗漏等工程，保修期为( )年。

A．1
B．2
C．5
D．7

如何理解货币需求？

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.

A．applications

B．accepted

C．clients

D．enthusiastic

E．servers

F．desktop

G．systems

H．replaced

简述电气设备着火灭火的安全要求。