问题
单项选择题
离心压缩机发生喘振的直接原因是（）
A、进口压力过高
B、排气管路压力过高
C、入口流量过大
D、排气流量过大
答案
参考答案：B
搜题请搜索小程序“爱下问搜题”
离心压缩机发生喘振的直接原因是（）
A、进口压力过高
B、排气管路压力过高
C、入口流量过大
D、排气流量过大
参考答案：B
| 97．Because Web servers are platform and application (1) , they can send or request data from legacy or external applications including databases. All replies, once converted into (2) mark-up language, can then be transmitted to a (3) . Used in this way, Intranets can (4) lower desktop support costs, easy links with legacy applications and databases and, (5) all, ease of use. |
(1)
A．pressed
B．compressed
C．compress
D．press