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【判断题】
根据GB7588-2003《电梯制造与安装安全规范》规定，极限开关动作后，只有经过专职人员调整，电梯才能恢复运行。根据这条规定，判断下列说法是否正确：极限开关的型式必须是不能自动复位的。()A.
正确
B.
错误
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举一反三
【单选题】All the teachers and students ______ , the ceremony was declared open.
A.
had arrived
B.
arrived
C.
having arrived
D.
arriving
【单选题】Sally thinks that people are usually unhappy at work because
A.
their salaries are too low.
B.
there are too many forms to complete.
C.
there is too much management control.
【判断题】《奥列佛 · 退斯特》的主要成就 , 是通过奥列佛由孤儿到窃贼的经历 , 抨击了刚刚通过的英国新济贫法的虚伪, 暴露了维多利亚“盛世”下骇人听社会罪恶。
A.
正确
B.
错误
【单选题】What kind of people are usually enrolled in the remedial program?
A.
Children who have dropped out of school.
B.
Children whose families cannot afford normal schooling.
C.
Adults who are not satisfied with their partners.
D.
Adults who have got little out of previous education.
【单选题】No sooner ______ home than my grandfather asked me to read the newspaper for him.
A.
I arrived
B.
I had arrived
C.
did I arrive
D.
had I arrived
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