()是引起弹簧式安全阀开启压力值发生偏差的原因之一。
参考答案:内部运动零件卡阻
-Where would you like to go on your summer holiday, Mike?
-I’d like to go ______.
A.nowhere interesting
B.interesting anywhere
C.somewhere interesting
D.interesting somewhere
债券收益不包括( )。
A.股利收益 B.利息收入 C.资本损益 D.再投资收益