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【单选题】
根据SHEL模型,在民用航空领域里,与飞行员构成界面的四个要素是A.
姿态仪、空速表、高度表、燃油表
B.
操纵杆、仪表、其他机组成员、跑道
C.
座舱硬件、软件、航空环境及其他机组成员、ATC
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举一反三
【单选题】In some societies a man has more than one wife and the first one is more important than the others.
A.
Right.
B.
Wrong.
C.
Doesn't say.
【简答题】A．Less than one year. B．More than one year. C．Less than one term. D．More than one term.
【单选题】炉膛负压摆动大，瞬时负压到最大，一、二次风压不正常降低，水位瞬时下降，汽压、汽温下降，该现象说明（）。
A.
烟道再燃烧
B.
吸风机挡板摆动
C.
锅炉灭火
D.
送风机故障
【单选题】炉膛负压摆大，瞬间负压到最大，一、二次风压不正常降低，水位瞬时下降，气压、气温下降说明此时发生( )。
A.
烟道面燃烧
B.
吸、送风机入口挡板摆动
C.
锅炉灭火
D.
炉膛掉焦
【单选题】More than one student _____been sent to Japan since 1990. More than one hundred students ______been sent to Japan since 1990.
A.
have; have
B.
has; has
C.
have; has
D.
has; have
【单选题】On National Day there are more than five __________ people in the zoo.
A.
thousand
B.
thousands
C.
thousands of
D.
thousand of
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