皮皮学，免费搜题
登录
搜题
【单选题】
在差压式变量泵和节流阀组成的容积节流调速回路中,如果将负载阻力减小,其他条件保持不变,泵的出口压力将( ),节流阀两端压差将( )。A.
增加；减少
B.
减少；增加
C.
减少；不变
D.
增加；不变
拍照语音搜题，微信中搜索"皮皮学"使用
参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【简答题】When it comes to decision-, one should make a quick choice without ________.
【单选题】The policeman ___ Mr.White is talking is a friend of mine.
A.
who
B.
whom
C.
with whom
D.
whose
【简答题】罗列出至少5种数据字典,并说明其作用?
【判断题】Mr. White is talking with Wang Min. Listen to the conversation and decide whether the following statements are true(T)or false(F) 1. When the tourists arrive at the hotel, they find there are not enou...
A.
正确
B.
错误
【简答题】Mr. White is talking with Wang Min. Listen to the conversation and decide whether the following statements are true (T) or false (F).
【单选题】对一定量的理想气体,下述几个准静态过程中不可能发生的是
A.
从外界吸收热量温度降低
B.
从外界吸热同时对外界做功
C.
吸收热量同时体积被压缩
D.
等温下的绝热膨胀
相关题目：
【单选题】The policeman ___ Mr.White is talking is a friend of mine.
A.
who
B.
whom
C.
with whom
D.
whose