当制冷装置冷负荷减少,压缩机吸气压力下降至预定值时,不会使()。
A.能量调节旁通阀开启
B.吸气压力越低时旁通阀开度越大
C.制冷剂旁通量越多
D.制冷剂旁通量越小
参考答案:D
Young people usually____ city life to country life while old people _______ enjoy country life.
A.would rather; prefer
B.prefer; would rather
C.would rather; would rather
D.prefer; prefer
以国民经济和社会发展特定领域为对象编制的规划是( )。
A.总体规划
B.专项规划
C.区域规划
D.核心规划