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【单选题】
空气压缩机的自动起停控制线路中不可缺少______以实现在设定的高压时______,而在设定的低压时______。A.
压力继电器/停止/停止
B.
压力继电器/停止/起动
C.
热继电器/停止/起动
D.
热继电器/停止/停止
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参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】He was eager to go to the hospital to see his stepmother,______ he loved and respected as his own mother.
A.
as
B.
which
C.
/
D.
whom
【单选题】The State banks are not enterprises in a real ( ) and are close to being government institutions.这些国有银行并非真正意义上的企业，而接近于是政府机构。
A.
sense
B.
science
C.
sensitive
D.
sensibility
【判断题】Mother
was eager to give me a chance to live just as happily as any girl of my age.
A.
正确
B.
错误
【单选题】具有下列()情形的,应当由所在地旅游主管部门给予撤销导游证。
A.
导游死亡的
B.
取得导游证后出现无民事行为能力或者限制行为能力
C.
申请人以欺骗.贿赂等不正当手段取得导游证
D.
导游证有效期届满未申请换发导游证的
【单选题】(单项选择题)具有下列()情形的,应当由所在地旅游主管部门给予撤销导游证。
A.
导游死亡的
B.
取得导游证后出现无民事行为能力或者限制行为能力
C.
申请人以欺骗、贿赂等不正当手段取得导游证的
D.
导游证有效期届满未申请换发导游证的
【单选题】It's strange that he should refuse a job in government ______ a university appointment.
A.
in favor of
B.
at an advantage of
C.
in charge of
D.
in excess of
【单选题】He was eager to go to the hospital to see his stepmother, _____ he loved and respected as his own mother.
A.
as
B.
which
C.
who
D.
whom
相关题目：
【判断题】Mother
was eager to give me a chance to live just as happily as any girl of my age.
A.
正确
B.
错误