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【简答题】
The trolley slides via roller bearings on the support bar. It also transfers forces from the mechanism to the leaf and vice versa. Furthermore, it provides parallelism between the carrier and the bar.
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皮皮学刷刷变学霸
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【单选题】This is the ___Where My mom do cooking.
A.
bathroom
B.
kitchen
C.
bedroom
D.
living-room
【单选题】―Where is your mom, John? ―My mother is talking ____ my teacher ____ my study.
A.
about; to
B.
with; about
C.
to; with
D.
about; with
【单选题】—Mom, where is my lunch pack? —Just where it .
A.
has been
B.
had been
C.
was
D.
will be
【单选题】--Where is my father, Mom? --He is __ home.
A.
by the way
B.
on the way
C.
in this way
D.
to the way
【单选题】—Where is my father, Mom? —He is __ to his office.
A.
by the way
B.
on the way
C.
in this way
D.
to the way
【单选题】创伤后应激障碍
A.
是指在异乎寻常的威胁或灾难性打击之后，延迟出现或长期持续的精神障碍
B.
是由剧烈的、异乎寻常的精神刺激、生活事件或持续困境的作用下引发的精神障碍
C.
是由于心理社会应激因素与个体素质共同作用的结果，表现为烦恼、抑郁等情感障碍，以及适应不良行为和生理功能障碍
D.
以显著而持久的心境低落为主要特征的一组疾病
E.
以焦虑为主要表现，表现为持续性紧张或发作性惊恐状态
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